2022–2023 Mpox Outbreak
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In May 2022, the
World Health Organization The World Health Organization (WHO) is a list of specialized agencies of the United Nations, specialized agency of the United Nations which coordinates responses to international public health issues and emergencies. It is headquartered in Gen ...
(WHO) made an emergency announcement of the existence of a multi-country
outbreak In epidemiology, an outbreak is a sudden increase in occurrences of a disease when cases are in excess of normal expectancy for the location or season. It may affect a small and localized group or impact upon thousands of people across an entire ...
of
mpox Mpox (, ; formerly known as monkeypox) is an infectious viral disease that can occur in humans and other animals. Symptoms include a rash that forms blisters and then crusts over, fever, and swollen lymph nodes. The illness is usually mild, ...
, a
viral disease A viral disease (or viral infection) occurs when an organism's body is invaded by pathogenic viruses, and infectious virus particles (virions) attach to and enter susceptible cells. Examples include the common cold, gastroenteritis, COVID-19, ...
then commonly known as "monkeypox". The initial cluster of cases was found in the
United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...
, where the first case was detected in
London London is the Capital city, capital and List of urban areas in the United Kingdom, largest city of both England and the United Kingdom, with a population of in . London metropolitan area, Its wider metropolitan area is the largest in Wester ...
on 6 May 2022 in a patient with a recent travel history from
Nigeria Nigeria, officially the Federal Republic of Nigeria, is a country in West Africa. It is situated between the Sahel to the north and the Gulf of Guinea in the Atlantic Ocean to the south. It covers an area of . With Demographics of Nigeria, ...
where the disease has been
endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...
. On 16 May, the
UK Health Security Agency The UK Health Security Agency (UKHSA) is a government agency responsible for all health security in England, and some reserved public health protection matters across the whole of the United Kingdom. It is an executive agency of the Department ...
(UKHSA) confirmed four new cases with no link to travel to a country where mpox is endemic. Subsequently, cases have been reported from many countries and regions. The outbreak marked the first time mpox had spread widely outside Central and
West Africa West Africa, also known as Western Africa, is the westernmost region of Africa. The United Nations geoscheme for Africa#Western Africa, United Nations defines Western Africa as the 16 countries of Benin, Burkina Faso, Cape Verde, The Gambia, Gha ...
. The disease had been circulating and evolving in human hosts over several years before the outbreak and was caused by the clade IIb variant of the virus. On 23 July 2022, the Director-General of WHO,
Tedros Adhanom Ghebreyesus Tedros Adhanom Ghebreyesus (, sometimes spelled ; born 3 March 1965) is an Ethiopian public health official, researcher, diplomat, and the DGWHO, Director-General of the World Health Organization since 2017. He is the first African to become W ...
, declared the outbreak a public health emergency of international concern (PHEIC), stating that "we have an outbreak that has spread around the world rapidly, through new modes of transmission, about which we understand too little". A global response to the outbreak included public awareness campaigns in order to reduce spread of the disease, and repurposing of smallpox vaccines. In May 2023, the World Health Organization declared an end to the PHEIC, citing steady progress in controlling the spread of the disease. Relatively low levels of cases continued to occur, and as of 30 April 2025, there have been a total of 138,731 confirmed cases and 328 deaths in 133 countries. Mpox is a viral infection that manifests a week or two after exposure with fever and other
non-specific symptoms Signs and symptoms are diagnostic indications of an illness, injury, or condition. Signs are objective and externally observable; symptoms are a person's reported subjective experiences. A sign for example may be a higher or lower temperature ...
, and then produces a
rash A rash is a change of the skin that affects its color, appearance, or texture. A rash may be localized in one part of the body, or affect all the skin. Rashes may cause the skin to change color, itch, become warm, bumpy, chapped, dry, cracke ...
with lesions that usually last for 2–4 weeks before drying up, crusting and falling off. While mpox can cause large numbers of lesions, in this outbreak some patients experience only a single lesion in the mouth or on the genitals, making it more difficult to differentiate from other infections. In previous outbreaks, 1–3 per cent of people with known infections had died (without treatment). In the 2022–2023 outbreak the rate of death was less than 0.2 percent. Cases in children and
immunocompromised Immunodeficiency, also known as immunocompromise, is a state in which the immune system's ability to fight infectious diseases and cancer is compromised or entirely absent. Most cases are acquired ("secondary") due to extrinsic factors that affe ...
people are more likely to be severe. Mpox spreads through close, personal, often skin-to-skin contact. The disease can spread through direct contact with rashes, or body fluids from an infected person, by touching objects and fabrics that have been used by someone with mpox or through respiratory secretions. Given the unexpected and vast geographical spread of the disease, the actual number of cases is likely to be underestimated. While anyone can get mpox, the majority of confirmed cases outside of the endemic regions in Africa occurred in young or middle-aged
men who have sex with men Men who have sex with men (MSM) are men who engage in sexual activity with other men, regardless of their sexual orientation or sexual identity. The term was created by epidemiologists in the 1990s, to better study and communicate the spre ...
(MSM) who had recent sexual contact with new or multiple partners. On 28 July 2022, the WHO Director-General advised MSM to limit exposure by reducing the number of sexual partners, reconsidering sex with new partners, and maintaining contact details to allow for epidemiological follow-up. The
Centers for Disease Control and Prevention The Centers for Disease Control and Prevention (CDC) is the National public health institutes, national public health agency of the United States. It is a Federal agencies of the United States, United States federal agency under the United S ...
has emphasized the importance of reducing stigma in communicating about the demographic aspects of mpox, specifically with regards to
gay ''Gay'' is a term that primarily refers to a homosexual person or the trait of being homosexual. The term originally meant 'carefree', 'cheerful', or 'bright and showy'. While scant usage referring to male homosexuality dates to the late ...
and
bisexual Bisexuality is romantic attraction, sexual attraction, or sexual behavior toward both males and females. It may also be defined as the attraction to more than one gender, to people of both the same and different gender, or the attraction t ...
men. A new outbreak of a different variant of mpox began in 2023 and was declared a PHEIC in August 2024.


Background


Emergency preparedness prior to outbreak

On 17 March 2021, the
Nuclear Threat Initiative The Nuclear Threat Initiative, generally referred to as NTI, is a non-profit organization located in Washington, D.C. NTI was founded in 2001 by former U.S. Senator Sam Nunn and philanthropist Ted Turner and describes itself as a "a nonprofit, ...
led a tabletop exercise at the
Munich Security Conference The Munich Security Conference (MSC), formerly Munich Conference on Security Policy, is an annual conference on international security policy that has been held in Munich, Germany, since 1963. Over the past four decades the Munich Security Con ...
simulating hypothetical public health responses to the intentional release of a genetically manipulated strain of monkeypox virus. On 23 July 2022, the
World Health Organization The World Health Organization (WHO) is a list of specialized agencies of the United Nations, specialized agency of the United Nations which coordinates responses to international public health issues and emergencies. It is headquartered in Gen ...
Director-General
Tedros Adhanom Ghebreyesus Tedros Adhanom Ghebreyesus (, sometimes spelled ; born 3 March 1965) is an Ethiopian public health official, researcher, diplomat, and the DGWHO, Director-General of the World Health Organization since 2017. He is the first African to become W ...
declared the 2022 outbreak a public health emergency of international concern. In May 2023, the emergency was declared over.


Endemic mpox in Africa

Mpox is endemic to
West West is one of the four cardinal directions or points of the compass. It is the opposite direction from east and is the direction in which the Sun sets on the Earth. Etymology The word "west" is a Germanic word passed into some Romance langu ...
and
Central Africa Central Africa (French language, French: ''Afrique centrale''; Spanish language, Spanish: ''África central''; Portuguese language, Portuguese: ''África Central'') is a subregion of the African continent comprising various countries accordin ...
. In a 2021 article, Oyewale Tomori pointed out that the number of mpox infections in Nigeria through 2021 were likely to be under-reported, because many Nigerians had been avoiding healthcare facilities due to fear of contracting
COVID-19 Coronavirus disease 2019 (COVID-19) is a contagious disease caused by the coronavirus SARS-CoV-2. In January 2020, the disease spread worldwide, resulting in the COVID-19 pandemic. The symptoms of COVID‑19 can vary but often include fever ...
. Nigeria's surveillance of various diseases, including mpox, had to focus on the global
COVID-19 pandemic The COVID-19 pandemic (also known as the coronavirus pandemic and COVID pandemic), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), began with an disease outbreak, outbreak of COVID-19 in Wuhan, China, in December ...
in 2020 and 2021, missing many cases and resulting in a drop in official statistics. As British health authorities reported the first case of mpox in the UK in May 2022, the
Nigerian government The federal government of Nigeria is composed of three distinct branches: the executive, the legislative, and the judicial, whose powers are vested and bestowed upon by the Constitution of the Federal Republic of Nigeria. One of the primary f ...
released information and statistics on reported cases and deaths in the country: The report of 9 May 2022 stated that between 2017 and 2022 there were 230 confirmed cases across 20 states and the Federal Capital Territory. Rivers State was the most affected, followed by Bayelsa and Lagos. In the span from 2017 to 2022, the NCDC reported six deaths in six different states, making for a 3.3% case fatality ratio. On 30 May, the first death from mpox was reported in Nigeria during 2022; the last time a death was reported in the country from this disease was in 2019. In May 2022 the
Africa Centres for Disease Control and Prevention The Africa Centres for Disease Control and Prevention (Africa CDC) is a public health agency of the African Union to support the public health initiatives of member states and strengthen the capacity of their health institutions to deal with dis ...
alerted several members of the African Union about cases of mpox. The director of the Africa CDC, Ahmed Ogwell, said that
Cameroon Cameroon, officially the Republic of Cameroon, is a country in Central Africa. It shares boundaries with Nigeria to the west and north, Chad to the northeast, the Central African Republic to the east, and Equatorial Guinea, Gabon, and the R ...
,
Central African Republic The Central African Republic (CAR) is a landlocked country in Central Africa. It is bordered by Chad to Central African Republic–Chad border, the north, Sudan to Central African Republic–Sudan border, the northeast, South Sudan to Central ...
, the
Democratic Republic of Congo The Democratic Republic of the Congo (DRC), also known as the DR Congo, Congo-Kinshasa, or simply the Congo (the last ambiguously also referring to the neighbouring Republic of the Congo), is a country in Central Africa. By land area, it is t ...
and
Nigeria Nigeria, officially the Federal Republic of Nigeria, is a country in West Africa. It is situated between the Sahel to the north and the Gulf of Guinea in the Atlantic Ocean to the south. It covers an area of . With Demographics of Nigeria, ...
have reported 1,405
endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...
cases with 62 deaths during the first five months of 2022. The case fatality rate in these four African countries combined was 4.4%.


Outbreak characteristics

Prior to the 2022 outbreak, the United Kingdom had recorded only seven previous cases of mpox, all of which were imported cases from Africa or healthcare workers involved in their treatment. The first three such cases were in 2018, followed by a further case in 2019 and three more in 2021. The only major mpox outbreak to be recorded in a Western country prior to 2022 was the
2003 Midwest monkeypox outbreak An outbreak of human monkeypox (now known as mpox) began in May 2003 in the United States. By July, a total of 71 cases were found in six Midwestern states including Wisconsin (39 cases), Indiana (16), Illinois (12), Kansas (1), Missouri (2), a ...
in the United States, which did not feature community transmission.


Phylogenetics

Phylogenomic characterization of the first monkeypox virus outbreak genome sequences, found the "presumably slow-evolving"
DNA virus A DNA virus is a virus that has a genome made of deoxyribonucleic acid (DNA) that is replicated by a DNA polymerase. They can be divided between those that have two strands of DNA in their genome, called double-stranded DNA (dsDNA) viruses, and t ...
has evolved roughly 6–12-fold more mutations than one would expect and 15 SNP
mutations In biology, a mutation is an alteration in the nucleic acid sequence of the genome of an organism, virus, or extrachromosomal DNA. Viral genomes contain either DNA or RNA. Mutations result from errors during DNA or viral replication, mitosi ...
since the beginning of the outbreak. Recombination has been reported in the natural transmission of monkeypox virus. Using Tandem repeat polymorphism, case FVGITA-01 (ON755039) in Italy, case VIDRL01(ON631963) in Australia, as well as six cases in Slovenia (ON838178, ON631241, ON609725, ON754985, ON754986, ON754987) were recombinant crossovers. Based on linkage disequilibrium (LD) between monkeypox virus variants with minor alleles in at least two MPXV isolates and to detect the possible recombination, two Germany cases (ON959149 and ON637939) and one Spain case (ON720849) already gained their mutations via recombination. Scientists investigated circulating lineages (and potential variants) of the monkeypox virus and are comparing them against the African endemic lineages.


Long incubation periods

Most mpox patients become symptomatic 4–11 days after infection. Very short
incubation period Incubation period (also known as the latent period or latency period) is the time elapsed between exposure to a pathogenic organism, a chemical, or ionizing radiation, radiation, and when symptoms and signs are first apparent. In a typical infect ...
s are also possible, with 5% of patients developing
symptoms Signs and symptoms are diagnostic indications of an illness, injury, or condition. Signs are objective and externally observable; symptoms are a person's reported subjective experiences. A sign for example may be a higher or lower temperature ...
within 3 days. This outbreak revealed that incubation periods of up to 4 weeks are possible, with 5% of cases having incubation periods longer than the previously assumed 21 days.


Mild clinical manifestations

An analysis of studies by a journalist in August 2022 indicated that "about 10-to-15% of cases had been hospitalized, mostly for pain and bacterial infections that can occur as a result of mpox lesions". Studies published a month later, in August indicated hospitalizations of small cohorts of early patients were 8% and 13%. A short review suggested supportive care may typically be sufficient and that several antivirals and vaccinia immune globulin intravenous (VIGIV) are available as treatments. The outbreak showed there can be (rare)
asymptomatic infection Asymptomatic (or clinically silent) is an adjective categorising the medical conditions (i.e., injuries or diseases) that patients carry but without experiencing their symptoms, despite an explicit diagnosis (e.g., a positive medical test). Pre ...
s.


Fear of zoonotic spread

In May 2022, the UK Human Animal Infections and Risk Surveillance (HAIRS) group warned that the virus could reach
wildlife Wildlife refers to domestication, undomesticated animals and uncultivated plant species which can exist in their natural habitat, but has come to include all organisms that grow or live wilderness, wild in an area without being species, introdu ...
and become endemic as a result. There was a concern that if the ongoing outbreak is prolonged, it "could establish new ecological niches in wild animals" in regions outside of Africa. In August, the first known case of probable human-to-dog transmission was reported with the canine exhibiting very similar signs and symptoms of mpox infection to that of humans.


Chronology

In the beginning of May 2022, a case of mpox in a British resident who had travelled to
Lagos Lagos ( ; ), or Lagos City, is a large metropolitan city in southwestern Nigeria. With an upper population estimated above 21 million dwellers, it is the largest city in Nigeria, the most populous urban area on the African continent, and on ...
and
Delta State Delta is a States of Nigeria, state in the South South (Nigeria), South-South geopolitical zone of Nigeria. Named after the Niger Delta—a large part of which is in the state—the state was formed from the former Bendel State, on 27 August 1 ...
in Nigeria, in areas where
mpox Mpox (, ; formerly known as monkeypox) is an infectious viral disease that can occur in humans and other animals. Symptoms include a rash that forms blisters and then crusts over, fever, and swollen lymph nodes. The illness is usually mild, ...
is considered to be an
endemic disease In epidemiology, an infection is said to be endemic in a specific population or populated place when that infection is constantly present, or maintained at a baseline level, without extra infections being brought into the group as a result of tr ...
, was reported. The person developed a
rash A rash is a change of the skin that affects its color, appearance, or texture. A rash may be localized in one part of the body, or affect all the skin. Rashes may cause the skin to change color, itch, become warm, bumpy, chapped, dry, cracke ...
on 29 April while in Nigeria and flew back to the United Kingdom, arriving on 4 May, and presented to hospital later the same day. Mpox infection was immediately suspected, and the patient was hospitalised at a specialist clinical unit of the
Guy's and St Thomas' NHS Foundation Trust Guy's and St Thomas' NHS Foundation Trust is an NHS foundation trust of the English National Health Service, one of the prestigious Shelford Group. It runs Guy's Hospital in London Bridge, St Thomas' Hospital in Waterloo, Evelina London Child ...
and isolated, then tested positive for the virus on 6 May. Testing of patient swab samples by
polymerase chain reaction The polymerase chain reaction (PCR) is a method widely used to make millions to billions of copies of a specific DNA sample rapidly, allowing scientists to amplify a very small sample of DNA (or a part of it) sufficiently to enable detailed st ...
revealed clade II of monkeypox virus, which is the less deadly of the two known monkeypox virus variants with a
case fatality rate In epidemiology, case fatality rate (CFR) – or sometimes more accurately case-fatality risk – is the proportion of people who have been diagnosed with a certain disease and end up dying of it. Unlike a disease's mortality rate, the CFR does ...
of around 1%. The genomic sequence of the virus associated with this outbreak was first published on 19 May by Portuguese researchers. Extensive
contact tracing In public health, contact tracing is the process of identifying people who may have been exposed to an infected person ("contacts") and subsequent collection of further data to assess transmission. By tracing the contacts of infected individua ...
of people who had been in contact with the index case both on the international flight from Nigeria to the United Kingdom and within the country following their arrival was carried out, with potential contacts advised to remain aware of the symptoms of mpox and immediately isolate if any were to develop within 21 days of the contact event. Following this contact tracing effort, the World Health Organization (WHO) considered further transmission of the virus within the United Kingdom to be of "minimal" risk. Contact tracing was extended to Scotland on 14 May according to Public Health Scotland. A "small number" of people in Scotland were ordered to self-isolate following close contact with the person initially reported to have been infected, although overall risk to the general public remained "very low". On 12 May two new cases of mpox were confirmed by the
UK Health Security Agency The UK Health Security Agency (UKHSA) is a government agency responsible for all health security in England, and some reserved public health protection matters across the whole of the United Kingdom. It is an executive agency of the Department ...
(UKHSA), both in London, living together in the same household, with no known link between either of them and either the index case or travel to endemic regions. One of the new cases was hospitalised at St Mary's Hospital, while the other case with milder symptoms was said to be self-isolating at home. On 17 May, another four cases of mpox were confirmed by the UKHSA in three Londoners and a person in
North East England North East England, commonly referred to simply as the North East within England, is one of nine official regions of England. It consists of County DurhamNorthumberland, , Northumberland, Tyne and Wear and part of northern North Yorkshire. ...
who had previously travelled to London. Unusually, none of these new cases had any known contact history with the previous three confirmed cases, which suggested a kind of transmission that had not been seen before, a wider
community transmission In medicine, public health, and biology, transmission is the passing of a pathogen causing communicable disease from an infected host individual or group to a particular individual or group, regardless of whether the other individual was previou ...
of the virus in the London area. The UKHSA stated that the risk to the general public remained "very low". Patients with active mpox infection were confirmed to be hospitalised at the
Royal Victoria Infirmary The Royal Victoria Infirmary (RVI) is a 673-bed tertiary referral hospital and research centre in Newcastle upon Tyne, England, with strong links to Newcastle University. The hospital is part of the Newcastle upon Tyne Hospitals NHS Foundation T ...
in
Newcastle upon Tyne Newcastle upon Tyne, or simply Newcastle ( , Received Pronunciation, RP: ), is a City status in the United Kingdom, cathedral city and metropolitan borough in Tyne and Wear, England. It is England's northernmost metropolitan borough, located o ...
and at the
Royal Free Hospital The Royal Free Hospital (also known as the Royal Free) is a major teaching hospital in the Hampstead area of the London Borough of Camden. The hospital is part of the Royal Free London NHS Foundation Trust, which also runs services at Barnet Ho ...
and
Guy's Hospital Guy's Hospital is an NHS hospital founded by philanthropist Thomas Guy in 1721, located in the borough of Southwark in central London. It is part of Guy's and St Thomas' NHS Foundation Trust and one of the institutions that comprise the Kin ...
in London. Also on 20 May, UK Health Secretary
Sajid Javid Sir Sajid Javid (; born 5 December 1969) is a British former politician who served as Secretary of State for Health and Social Care from June 2021 to July 2022, having previously served as Home Secretary from 2018 to 2019 and Chancellor of the ...
reported that another eleven cases had been confirmed, bringing the total in the country to twenty. UKHSA reported on 10 June that 311 of the 314 cases where sex was known were men, and that all of the 151 infected persons who filled out an additional questionnaire and answered questions about sexual practices were men who have sex with men, abbreviated MSM. Dr. Susan Hopkins from the UKHSA urged watchfulness among men who have sex with men. The UK Health Security Agency (UKHSA) advised people who have had close contact with a person infected with mpox to self-isolate for 21 days. Further cases in multiple countries outside the endemic area were reported through the second half of May 2022. On 18 May, Portugal reported 14 cases of mpox. In Spain, there were seven confirmed cases as of 18 May. On the same day, the United States confirmed its first 2022 case of mpox and Canada reported 13 suspected cases. On 19 May, Sweden, Belgium and Italy confirmed their first cases. On 20 May, Australia, Germany, France and the Netherlands confirmed their first cases. For the remainder of May, multiple European countries and Israel confirmed their first cases. The
United Arab Emirates The United Arab Emirates (UAE), or simply the Emirates, is a country in West Asia, in the Middle East, at the eastern end of the Arabian Peninsula. It is a Federal monarchy, federal elective monarchy made up of Emirates of the United Arab E ...
and Mexico also confirmed their first cases. On 23 May, David Heymann, an advisor for the World Health Organization, said that the likely theory of how the outbreak started is transmission during sexual intercourse of
gay ''Gay'' is a term that primarily refers to a homosexual person or the trait of being homosexual. The term originally meant 'carefree', 'cheerful', or 'bright and showy'. While scant usage referring to male homosexuality dates to the late ...
and
bisexual men Bisexuality is romantic attraction, sexual attraction, or sexual behavior toward both males and females. It may also be defined as the attraction to more than one gender, to people of both the same and different gender, or the attraction t ...
at two
rave A rave (from the verb: '' to rave'') is a dance party at a warehouse, club, or other public or private venue, typically featuring performances by DJs playing electronic dance music. The style is most associated with the early 1990s dance mus ...
s in Belgium and Spain. On 25 May, ''
The Guardian ''The Guardian'' is a British daily newspaper. It was founded in Manchester in 1821 as ''The Manchester Guardian'' and changed its name in 1959, followed by a move to London. Along with its sister paper, ''The Guardian Weekly'', ''The Guardi ...
'' stated that many scientists suspect the disease was circulating across Europe before reaching the MSM community, possibly misdiagnosed or detected only in isolated cases; four cases were diagnosed in 2018 and 2019, all in individuals who recently arrived from Nigeria. In addition to more common symptoms, such as fever, headache, swollen lymph nodes, and rashes or lesions, some patients have also experienced proctitis, an inflammation of the rectum lining. CDC has also warned clinicians to not rule out mpox in patients with sexually transmitted infections since there have been reports of co-infections with
syphilis Syphilis () is a sexually transmitted infection caused by the bacterium ''Treponema pallidum'' subspecies ''pallidum''. The signs and symptoms depend on the stage it presents: primary, secondary, latent syphilis, latent or tertiary. The prim ...
,
gonorrhea Gonorrhoea or gonorrhea, colloquially known as the clap, is a sexually transmitted infection (STI) caused by the bacterium ''Neisseria gonorrhoeae''. Infection may involve the genitals, mouth, or rectum. Gonorrhea is spread through sexual c ...
,
chlamydia Chlamydia, or more specifically a chlamydia infection, is a sexually transmitted infection caused by the bacterium ''Chlamydia trachomatis''. Most people who are infected have no symptoms. When symptoms do appear, they may occur only several w ...
, and
herpes Herpes simplex, often known simply as herpes, is a viral infection caused by the herpes simplex virus. Herpes infections are categorized by the area of the body that is infected. The two major types of herpes are oral herpes and genital herp ...
.


Deaths outside of Africa

The first death outside of endemic Africa was reported in Brazil on 29 July 2022, in a 41-year-old man with underlying comorbidities. On the same day Spain reported its first death, a 44-year-old man in
Alicante Alicante (, , ; ; ; officially: ''/'' ) is a city and municipalities of Spain, municipality in the Valencian Community, Spain. It is the capital of the province of Alicante and a historic Mediterranean Sea, Mediterranean port. The population ...
, with the cause of death being
encephalitis Encephalitis is inflammation of the Human brain, brain. The severity can be variable with symptoms including reduction or alteration in consciousness, aphasia, headache, fever, confusion, a stiff neck, and vomiting. Complications may include se ...
associated with mpox infection. Spain reported its second mpox-related death on 30 July 2022, in a 31-year-old man in Córdoba, who had also suffered from encephalitis according to reports. On 1 August 2022, India confirmed its first mpox death, a 22-year-old male who died in
Thrissur Thrissur (, ), Renaming of cities in India, formerly Trichur, also known by its historical name Thrissivaperur, is a city and the headquarters of the Thrissur district in Kerala, India. It is the List of most populous urban agglomerations in Ke ...
,
Kerala Kerala ( , ) is a States and union territories of India, state on the Malabar Coast of India. It was formed on 1 November 1956, following the passage of the States Reorganisation Act, by combining Malayalam-speaking regions of the erstwhile ...
on 30 July. On the same day, Peru reported the death of a mpox-affected 45-year-old male, who also had
HIV The human immunodeficiency viruses (HIV) are two species of '' Lentivirus'' (a subgroup of retrovirus) that infect humans. Over time, they cause acquired immunodeficiency syndrome (AIDS), a condition in which progressive failure of the im ...
and
septic shock Septic shock is a potentially fatal medical condition that occurs when sepsis, which is organ injury or damage in response to infection, leads to dangerously low blood pressure and abnormalities in cellular metabolism. The Third International C ...
. On 30 August 2022, a Texan from Harris County became the first American to die of the mpox epidemic.


Transmission

A large portion of those infected had not recently travelled to areas of Africa where mpox is endemic, such as
Nigeria Nigeria, officially the Federal Republic of Nigeria, is a country in West Africa. It is situated between the Sahel to the north and the Gulf of Guinea in the Atlantic Ocean to the south. It covers an area of . With Demographics of Nigeria, ...
, the
Democratic Republic of the Congo The Democratic Republic of the Congo (DRC), also known as the DR Congo, Congo-Kinshasa, or simply the Congo (the last ambiguously also referring to the neighbouring Republic of the Congo), is a country in Central Africa. By land area, it is t ...
as well as central and
western Africa West Africa, also known as Western Africa, is the westernmost region of Africa. The United Nations defines Western Africa as the 16 countries of Benin, Burkina Faso, Cape Verde, The Gambia, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Liberia, Ma ...
. It is transmitted by close contact with infected people, with extra caution for those individuals with
lesion A lesion is any damage or abnormal change in the tissue of an organism, usually caused by injury or diseases. The term ''Lesion'' is derived from the Latin meaning "injury". Lesions may occur in both plants and animals. Types There is no de ...
s on their skin or genitals, along with their bedding and clothing. The disease can spread via respiratory secretions or by direct contact with rashes, body fluids or by touching objects and fabrics that have been used by someone with mpox. The CDC has also stated that individuals should avoid contact and consumption of dead animals such as rats, squirrels, monkeys and apes along with wild game or lotions derived from animals in Africa.


Transmission patterns

The 2022–2023 outbreak initially had a different pattern of spread compared to prior mpox outbreaks outside Africa. Genetic evidence suggest the outbreak likely started in Nigeria. Given the unusually high frequency of human-to-human transmission observed in this event, and the probable community transmission without history of traveling to endemic areas, spread of the virus through close contact is more likely, with transmission during sexual activities being the most common route. Most cases have been in men. A significant proportion of cases, although not all, are in men who have sex with men (MSM), notably in Canada, Spain, and the UK, with many cases diagnosed in sexual health clinics. Cases are mostly in young and middle-aged men. This points to transmission due to close contact during sex as being the main route of transmission. In May 2022, the
European Centre for Disease Prevention and Control The European Centre for Disease Prevention and Control (ECDC) is an agency of the European Union (EU) whose mission is to strengthen Europe's defences against infectious diseases. It covers a wide spectrum of activities, such as: surveillance, e ...
(ECDC) considered the monkeypox virus to be moderately transmissible among humans. According to the centre, among MSM who contracted the virus, the most common means of transmission is likely through sexual activity due to intimate contact with infectious skin lesions. The ECDC rated likelihood of transmission due to close contact, including sexual contact, as "high", but, without close contact, as low. In ''
Nature Nature is an inherent character or constitution, particularly of the Ecosphere (planetary), ecosphere or the universe as a whole. In this general sense nature refers to the Scientific law, laws, elements and phenomenon, phenomena of the physic ...
'', Anne Rimoin and Raina MacIntyre speculate that the higher percentage of MSM affected is a result of coincidental introduction to the community and then sexual activity constituting "close contact" rather than the virus itself becoming sexually transmitted. However, in a study published in August 2022, infectious monkeypox virus was able to be isolated from semen samples, and the prolonged shedding of virus in seminal fluids raised the possibility of a genital reservoir for human mpox. On 21 July, a study on a sample of 528 infections diagnosed between 27 April and 24 June outside endemic regions in Africa indicated that: 99% cases were in men; 98% of cases occurred in the community of men who have sex with men (MSM), mainly those who have multiple sex partners (median of 5 partners in the previous 3 months); 75% were
white White is the lightest color and is achromatic (having no chroma). It is the color of objects such as snow, chalk, and milk, and is the opposite of black. White objects fully (or almost fully) reflect and scatter all the visible wa ...
; 41% had
HIV/AIDS The HIV, human immunodeficiency virus (HIV) is a retrovirus that attacks the immune system. Without treatment, it can lead to a spectrum of conditions including acquired immunodeficiency syndrome (AIDS). It is a Preventive healthcare, pr ...
, of which 96% were on
antiretroviral therapy The management of HIV/AIDS normally includes the use of multiple antiretroviral drugs as a strategy to control HIV infection. There are several classes of antiretroviral agents that act on different stages of the HIV life-cycle. The use of mul ...
, while 57% of the persons who were not known to have HIV infection were on
pre-exposure prophylaxis Pre-exposure prophylaxis (PrEP), is the use of medications to prevent the spread of disease in people who have not yet been exposed to a disease-causing agent. Vaccination is the most commonly used form of pre-exposure prophylaxis; other forms of ...
; 29% had another concomitant
sexually transmitted infection A sexually transmitted infection (STI), also referred to as a sexually transmitted disease (STD) and the older term venereal disease (VD), is an infection that is Transmission (medicine), spread by Human sexual activity, sexual activity, e ...
; and in the previous month, 32% attended a sex on premises venue and 20% engaged in chemsex. On 2 August, data collected by the Joint ECDC-
WHO The World Health Organization (WHO) is a specialized agency of the United Nations which coordinates responses to international public health issues and emergencies. It is headquartered in Geneva, Switzerland, and has 6 regional offices and 15 ...
Regional Office for Europe Mpox Surveillance indicated that 99% (15,439/15,572) of the cases reported throughout the European region were among males, with 44% among MSM, 1% among heterosexuals and another 55% in males whose sexual orientation is unknown. Among cases with known HIV status, 36% (2,690/7,487) were HIV-positive. Updated frequently. A
preprint In academic publishing, a preprint is a version of a scholarly or scientific paper that precedes formal peer review and publication in a peer-reviewed scholarly or scientific journal. The preprint may be available, often as a non-typeset versi ...
suggests that cases "where a small fraction of individuals have disproportionately large numbers of partners, can explain the sustained growth of mpox cases among the MSM population". The basic reproduction number during the initial phase of the 2022 global outbreak of mpox was estimated to be 1.29, and the herd immunity of mpox was estimated to be 24.94%. As the mpox outbreak developed,
nosocomial A hospital-acquired infection, also known as a nosocomial infection (from the Greek , meaning "hospital"), is an infection that is acquired in a hospital or other healthcare facility. To emphasize both hospital and nonhospital settings, it is s ...
and other forms of human-to-human spread became apparent, with a notable example being a doctor in an Israeli hospital becoming infected probably while removing protective clothing after examining mpox patients. Contaminated surfaces within hospitals and households may be infectious, with widespread contamination of surface and air samples taken from mpox isolation rooms in UK hospitals being documented.


Wastewater surveillance

A study from the Faculty of Medicine at
Chulalongkorn University Chulalongkorn University (CU; ; , ) is a public university, public Autonomous university, autonomous research university in Bangkok, Thailand. The university was originally founded during King Chulalongkorn's reign as a school for training ro ...
reported multiple traces of monkeypox virus were detected in non-sewered wastewater with sparse sampling collected from both the Bangkok, Thailand with increasing concentrations from June to August 2022. Monkeypox viral DNA was first detected in wastewater in the second week of June 2022. From the first week of July, the number of viral DNA copies increased. Sanger sequencing confirmed the identification of the monkeypox virus and its relation to the 2022–2023 mpox outbreak.


Interventions


Testing and containment

In early July 2022, scientists reported that the window to be able to contain the outbreak is closing or has closed. Previous attempts to control the disease had included encouraging individuals to quarantine or inoculation efforts directed at high-risk individuals. By late July 23, the WHO declared the mpox a public health emergency due to its prevalence and spread in multiple countries. Mpox testing is done in various ways, usually using a swab or test sample from an infected persons lesions, throat, blood, or semen. Upon the recommendation of the WHO, PCR testing became the most common test for diagnosing mpox during the outbreak. PCR testing used genome sequencing to identify genomes which are unique to MPVX to use in diagnosis.


Vaccination

As of June 2022, ring-vaccinations and pre-exposure vaccination of MSM were strategies in some countries to contain the outbreak. Local transmission leading to sizeable clusters may have gone unnoticed for some time. Two vaccines are available. Smallpox vaccines containing
vaccinia The vaccinia virus (VACV or VV) is a large, complex, enveloped virus belonging to the poxvirus family. It has a linear, double-stranded DNA genome approximately 190 kbp in length, which encodes approximately 250 genes. The dimensions of the ...
such as Imvanex (Jynneos) and
ACAM2000 ACAM2000 is a smallpox vaccine and an mpox vaccine manufactured by Emergent Biosolutions. It provides protection against smallpox for people determined to be at high risk for smallpox infection. ACAM2000 is a live replicating vaccinia virus v ...
can provide around 85% effectiveness against mpox. This protection level is calculated from studies using smallpox vaccines tested in late 1980 in Africa. According to the CDC the vaccination with Jynneos/Imvanex is " ministered as two subcutaneous injections four weeks apart" while the vaccination with ACAM2000 is "administered as one percutaneous dose via multiple puncture technique with a bifurcated needle". However, ACAM2000 is not recommended for potentially immunocompromised persons due to high replication competency of
vaccinia The vaccinia virus (VACV or VV) is a large, complex, enveloped virus belonging to the poxvirus family. It has a linear, double-stranded DNA genome approximately 190 kbp in length, which encodes approximately 250 genes. The dimensions of the ...
while Imvanex (Jynneos) is recommended for potentially immunocompromised persons due it containing an attenuated, non-replicating
orthopoxvirus ''Orthopoxvirus'' is a genus of viruses in the family ''Poxviridae'' and subfamily ''Chordopoxvirinae''. Vertebrates, including mammals and humans, and arthropods serve as natural hosts. There are 12 species in this genus. Diseases associated wi ...
, Modified Vaccinia Ankara-Bavarian Nordic (MVA-BN). The UKHSA has begun using Imvanex as post-exposure prophylaxis for close contacts of known cases. On 25 May, disease experts from the NICD in South Africa said they saw no need for mass vaccination, because they believe cases will not explode as they did in the COVID-19 pandemic. In reaction to this outbreak of mpox, a number of countries have stated they are buying vaccines and/or releasing vaccines from national stockpiles for use in the outbreak. In May 2022, the US, Spain, Germany and the UK all announced purchases of smallpox vaccine. On 24 May,
Centers for Disease Control The Centers for Disease Control and Prevention (CDC) is the national public health agency of the United States. It is a United States federal agency under the Department of Health and Human Services (HHS), and is headquartered in Atlanta, ...
(CDC) Deputy Director Jennifer McQuiston confirmed the United States is releasing some of their Jynneos vaccine supply from their
Strategic National Stockpile The Strategic National Stockpile (SNS), originally called the National Pharmaceutical Stockpile (NPS), is the United States' national repository of antibiotics, vaccines, chemical antidotes, antitoxins, and other critical medical supplies. Its ...
for people who are "high-risk". On 23 June, the New York City Department of Health announced a clinic at the Chelsea Sexual Health Clinic would offer the two-dose Jynneos vaccine to "...all gay, bisexual, and other men who have sex with men (cisgender or transgender) ages 18 and older who have had multiple or anonymous sex partners in the last 14 days". By July 27, the federal government had distributed 300,000 doses to state and local health authorities, with distribution at clinics nation-wide, and was planning to release 786,000 more that week. Bavarian Nordic is the only manufacturer of Jynneos in the world, and its manufacturing facility closed in spring 2022 to be refitted to make vaccines for other diseases using the MVA-BN technology. The company projects Jynneos manufacturing will restart in 2023, except for 15 million doses that just need final "fill and finish" repackaging. The United States helped fund the development of Jynneos, leading to concerns that existing contracts will lead to vaccine nationalism and hoarding, and prompting calls for allocating doses to lower-income countries via
GAVI GAVI, officially Gavi, the Vaccine Alliance (previously the GAVI Alliance, and before that the Global Alliance for Vaccines and Immunization) is a Public–private partnership, public–private global health partnership with the goal of incr ...
. On 9 August, the
FDA The United States Food and Drug Administration (FDA or US FDA) is a federal agency of the Department of Health and Human Services. The FDA is responsible for protecting and promoting public health through the control and supervision of food ...
gave emergency use authorization for
intradermal Intradermal injection (also intracutaneous or intradermic, abbreviated as ID) is a shallow or superficial injection of a substance into the dermis, which is located between the epidermis and the hypodermis. For certain substances, administration ...
(rather than subcutaneous) mpox vaccination using a lower dose of Jynneos, which would increase the number of available doses up to five-fold. The vaccination would still be given in two doses, 28 days apart. A 2015 study had tested a regimen of one-fifth dose given intradermally. Another mpox vaccine, the modern LC16m8 vaccine, the only mpox vaccine approved for children, was developed in Japan as a national asset, and the manufacturer initially said it could not assist other countries. In August 2024, though, the Japanese government decided to send donations of the vaccine to the
Democratic Republic of the Congo The Democratic Republic of the Congo (DRC), also known as the DR Congo, Congo-Kinshasa, or simply the Congo (the last ambiguously also referring to the neighbouring Republic of the Congo), is a country in Central Africa. By land area, it is t ...
to help in their mitigation efforts.


Social aspects

As of May 2022, public health authorities had aimed to target resources and
health education Health education is a profession of educating people about health. Areas within this profession encompass environmental health, physical health, social health, emotional health, intellectual health, and spiritual health, as well as sexual and r ...
to affected groups, but avoid stigma which could discourage people with symptoms or who have been exposed from seeking help.
LGBT LGBTQ people are individuals who are lesbian, gay, bisexual, transgender, queer, or questioning. Many variants of the initialism are used; LGBTQIA+ people incorporates intersex, asexual, aromantic, agender, and other individuals. The gro ...
rights groups issued statements advising media to avoid stigmatizing marginalized groups such as men who have sex with men or transgender individuals. On 22 May,
UNAIDS The Joint United Nations Programme on HIV and AIDS (UNAIDS; , ONUSIDA) is the main advocate for accelerated, comprehensive and coordinated global action on the HIV/AIDS pandemic. The mission of UNAIDS is to lead, strengthen and support an ex ...
urged communicators to avoid stigma by taking an evidence-based approach, and reiterated that the disease can affect anyone and that risk is by no means limited to men who have sex with men. On 24 May, ''
The Washington Post ''The Washington Post'', locally known as ''The'' ''Post'' and, informally, ''WaPo'' or ''WP'', is an American daily newspaper published in Washington, D.C., the national capital. It is the most widely circulated newspaper in the Washington m ...
'' published an article that pointed out the lack of global attention to the disease at a time when it only affected
Africa Africa is the world's second-largest and second-most populous continent after Asia. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 20% of Earth's land area and 6% of its total surfac ...
ns, compared to the attention directed at it when a small number of cases started affecting
Western countries The Western world, also known as the West, primarily refers to various nations and states in Western Europe, Northern America, and Australasia; with some debate as to whether those in Eastern Europe and Latin America also constitute the West. ...
. Some also objected to pictures used in media coverage of mild illnesses in Europe that featured severe cases in sub-Saharan Africans. On 25 May, the
World Health Organization The World Health Organization (WHO) is a list of specialized agencies of the United Nations, specialized agency of the United Nations which coordinates responses to international public health issues and emergencies. It is headquartered in Gen ...
released several statements and pamphlets aimed at gay and bisexual men describing the symptoms of mpox, as well as possible transmission routes. The statements emphasized that mpox was not a disease that was exclusive to the LGBT community, or to men, but that because these groups were disproportionately affected, the WHO felt they should tailor some health material to these groups. On 26 July,
Owen Jones Owen Jones (born 8 August 1984) is a left-wing British newspaper columnist, commentator, journalist, author and political activist. He writes a column for ''The Guardian'' and contributes to the ''New Statesman'', ''Tribune (magazine), Tribune ...
of ''
The Guardian ''The Guardian'' is a British daily newspaper. It was founded in Manchester in 1821 as ''The Manchester Guardian'' and changed its name in 1959, followed by a move to London. Along with its sister paper, ''The Guardian Weekly'', ''The Guardi ...
'' argued that the focus needs to be on testing, awareness and vaccination, that targeted health messages help protect as many people as possible from the virus, and that those most at risk should be protected without stigma, noting that some members of the LGBT community already started to adjust behaviors to reduce risk. On 30 July,
Rod Dreher Ray Oliver Dreher Jr. (born February 14, 1967), known as Rod Dreher, is an American conservative writer and editor living in Hungary. He was a columnist with ''The American Conservative'' for 12 years, ending in March 2023, and remains an edito ...
of ''
The American Conservative ''The American Conservative'' (''TAC'') is a bimonthly magazine published by the American Ideas Institute. The magazine was founded in 2002 by Pat Buchanan, Scott McConnell and Taki Theodoracopulos to advance an anti- neoconservative perspect ...
'' criticized public health officials for not shutting down gay sex clubs in response to the outbreak. Similarly, many conservative commentators have accused public health officials of hypocrisy for implementing harsh restrictions on everyday life in response to the COVID-19 pandemic while not encouraging similar restrictions in response to mpox, such as shutting down sex parties and practicing abstinence. In response, public health officials have "reject dcomparisons to the early days of the coronavirus pandemic, when they mandated masks and shut down public spaces. They noted that the novel coronavirus was unfamiliar, far deadlier and airborne, with hospitals overrun with patients at various points over the past two years." and that "Monkeypox has known treatments and vaccines, although they have been challenging to access; it also has not killed anyone in the United States, and hospitalizations are uncommon." An August survey by the
CDC The Centers for Disease Control and Prevention (CDC) is the national public health agency of the United States. It is a United States federal agency under the Department of Health and Human Services (HHS), and is headquartered in Atlanta, ...
found that gay and bisexual men have significantly reduced sexual encounters in response to the mpox outbreak. An additional WHO survey, also conducted in August, showed similar patterns in queer men in Europe. Many of the men surveyed noted that they had reduced how often they went out with others, limited their number of sexual partners, or began temporarily practicing abstinence.


Misinformation

Misinformation Misinformation is incorrect or misleading information. Misinformation and disinformation are not interchangeable terms: misinformation can exist with or without specific malicious intent, whereas disinformation is distinct in that the information ...
and
conspiracy theories A conspiracy theory is an explanation for an event or situation that asserts the existence of a conspiracy (generally by powerful sinister groups, often political in motivation), when other explanations are more probable.Additional sources: * ...
immediately spread online in various social media networks. In an article published by the
BBC The British Broadcasting Corporation (BBC) is a British public service broadcaster headquartered at Broadcasting House in London, England. Originally established in 1922 as the British Broadcasting Company, it evolved into its current sta ...
in May 2022 countering misinformation about the mpox outbreak, journalist Rachel Schraer noted that social media accounts and news outlets from different countries including China, Russia, Ukraine and the United States have been promoting the idea that the outbreak was caused by a lab leak or that mpox is being used as a bioweapon. The
Institute for Strategic Dialogue The Institute for Strategic Dialogue (ISD) is a political advocacy organization founded in 2006 by Sasha Havlicek and George Weidenfeld, Baron Weidenfeld, George Weidenfeld and headquartered in London, United Kingdom. Activities ISD's core ...
described this as "Reviving the spread of a set of cut-and-paste... conspiracies", referring to conspiracy theories used during the COVID-19 pandemic. The BBC also made it clear that the genetic sequences of the virus, as far as is known, date back to a West African strain. Some online misinformation also included claims that the
COVID-19 vaccine A COVID19 vaccine is a vaccine intended to provide acquired immunity against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus that causes coronavirus disease 2019 ( COVID19). Knowledge about the structure and fun ...
included mpox or that mpox was going to be used to justify new widespread lockdowns akin to those that occurred during COVID-19.


Responses


World Health Organization

On 20 May, the
World Health Organization The World Health Organization (WHO) is a list of specialized agencies of the United Nations, specialized agency of the United Nations which coordinates responses to international public health issues and emergencies. It is headquartered in Gen ...
(WHO) convened an emergency meeting of independent advisers to discuss the outbreak and assess the threat level. Initial assessments expressed the expectation of the outbreak to be contained, and of low impact to the general population in affected countries. Its European chief, Hans Kluge, expressed concern that infections could accelerate in Europe as people gather for parties and festivals over the summer. On 1 June, a WHO statement acknowledged that undetected transmission had occurred for some time, and called for urgent action to reduce transmission. On 14 June, the WHO announced plans to rename disease from ''monkeypox'' to ''mpox'' to combat stigma and racism surrounding the disease. A meeting convened on 23 June determined that the outbreak did not constitute a public health emergency of international concern for the time being, but that decision was overturned by a later meeting on 23 July. After consistently dropping cases and several countries seemingly having a grasp on the outbreak, the WHO would declare the mpox epidemic over in May 2023. However, they continued to urge governments and their citizens to be wary of a potential resurgence of mpox.


Countries

*: The Pasteur Institute of Algeria issued a communiqué in May, in which the Institute described the origins of mpox in Sub-Saharan Africa, and recommended physical distancing, as well as the use of masks in crowded or enclosed places, in addition to avoiding contact with wild animals that may possess the virus. *: On 28 July, Health Minister Anahit Avanesian told reporters that the country had not yet recorded any cases of mpox, but confirmed that the country had received test kits from
Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...
. *: On 28 July, the Chief Medical Officer of Australia declared the increasing presence of mpox "a communicable disease incident of national significance". On 4 August, the Health Minister announced the securing of 450,000 third-generation mpox vaccines. *: On 22 May, the Directorate General of Health Services (DGHS) issued warnings at every port in the country to prevent the spread of mpox. The Directorate spokesperson said that they have asked all air, land and sea ports to be alert. Suspected cases are instructed to be sent to an infectious disease hospital and kept in isolation. Bangladesh became the first country bar shore passes, after the Chittagong Seaport barred shore passes for all crew unless in the case of an emergency, while signed-off crew will have to undergo health checks. *: The Risk Assessment Group (RAG) and health authorities declared that those infected with mpox must self-isolate for 21 days. *: The Brazilian Ministry of Health created groups of biologists to monitor monkeys and medical groups to monitor possible cases. On August 8, 2022, during a
podcast A podcast is a Radio program, program made available in digital format for download over the Internet. Typically, a podcast is an Episode, episodic series of digital audio Computer file, files that users can download to a personal device or str ...
, the
president of Brazil The president of Brazil (), officially the president of the Federative Republic of Brazil () or simply the ''President of the Republic'', is the head of state and head of government of Brazil. The president leads the executive branch of the ...
Jair Bolsonaro Jair Messias Bolsonaro (; born 21 March 1955) is a Brazilian politician and former military officer who served as the 38th president of Brazil from 2019 to 2023. He previously served as a member of Brazil's Chamber of Deputies (Brazil), Chamb ...
made
homophobic Homophobia encompasses a range of negative attitudes and feelings toward homosexuality or people who identify or are perceived as being lesbian, Gay men, gay or bisexual. It has been defined as contempt, prejudice, aversion, hatred, or ant ...
jokes about the disease. When questioning the host about whether he would get a mpox vaccine, and the host says yes; Jair Bolsonaro replied: "I'm sure you want to get the vaccine. You don't fool me" followed by laughter. The host remains in his serious speech on the subject, Bolsonaro commented: "Don't you understand?" clarifying the homophobic tone of the comment. *: In June, the Ministry of Health advised the population of Botswana to go to the nearest hospital in case of any unusual symptoms. In addition, the ministry advised to avoid close contact with other people. *: In May, Or Vandine, spokeswoman for the Ministry of Health, alerted the citizens of Cambodia that mpox could be lethal due to the lesions caused by this disease, which can lead to complications in the body's organs. In June 2022, the Cambodian government ordered screening under the supervision of health workers of all air, sea and land entry points in the country, in addition to ordering mandatory quarantine of anyone infected or in contact with people with the disease. *: On 21 April,
Public Services and Procurement Canada Public Services and Procurement Canada (PSPC; ),''Public Services and Procurement Canada'' is the applied title under the Federal Identity Program; the legal title is Department of Public Works and Government Services (). formerly Public Works ...
published a tender request seeking to stockpile doses of
smallpox vaccine The smallpox vaccine is used to prevent smallpox infection caused by the variola virus. It is the first vaccine to have been developed against a contagious disease. In 1796, British physician Edward Jenner demonstrated that an infection with th ...
to be prepared in the event of a future accidental or intentional release of the virus. The contract for 500,000 doses closed on 5 May, and was awarded to Bavarian Nordic. On 24 May, the
Public Health Agency of Canada The Public Health Agency of Canada (PHAC; ) is an agency of the Government of Canada that is responsible for public health, emergency preparedness and response, and infectious and chronic disease control and prevention. History The PHAC was f ...
stated that they were in the process of extracting Imvamune vaccines from their National Emergency Strategic Stockpile for deployment across the country, starting with the province of
Quebec Quebec is Canada's List of Canadian provinces and territories by area, largest province by area. Located in Central Canada, the province shares borders with the provinces of Ontario to the west, Newfoundland and Labrador to the northeast, ...
. On 26 May, Quebec announced that Imvamune vaccines would be made available to those who have been in close contact with confirmed or suspected mpox cases. On 7 June, PHAC announced that travellers returning to Canada may be subject to a mandatory quarantine period if they become ill with mpox, and warned that quarantined travellers may have restricted access to health care and delays returning home. *: On 2 June, the Chinese CDC issued a notice quoting WHO's document with a translation of the original "Stigmatising people because of a disease is never okay. Anyone can get or pass on monkeypox, regardless of their sexuality." On June 10, the General office of the National Health Commission of the People's Republic of China and the Office of the State Administration of Traditional Chinese Medicine issued the ''Guidelines for the Diagnosis and Treatment of Monkeypox (2022 Version)''. On July 25, after the declaration of mpox as a public health emergency of international concern by World Health Organization, the General Administration of Customs of the People's Republic of China issued the ''Announcement on Preventing Monkeypox from Spreading into China''. In September 2022, the Chinese CDC's chief epidemiologist advised Chinese citizens to avoid "direct skin-to-skin contact with foreigners". Months after the end of the WHO public health emergency, in the late summer and early fall of 2023, China accounted for half of the world's new confirmed cases amid a spike in positive test results. At the time of the 2023 outbreak, it had not yet approved any of the three existing mpox vaccines for domestic use, with some analysts citing vaccine nationalism and homophobia as contributing factors. *: As of May, the Colombian Ministry of Health was taking follow-up and control measures. The Director of Epidemiology and Demography of the Ministry of Health, Claudia Cuellar, informed the Colombian population about how mpox is spread through people, and she spoke about the clinical presentation of the virus and international health regulations. Health authorities in the Department of Norte de Santander have been on alert, since the department is a border area where people pass between Colombia and Venezuela. *: In May, the Ministry of Public Health of the Dominican Republic issued a preventive epidemiological alert after mpox was reported in several countries. *: On 24 May, the Egyptian Ministry of Health and Population informed about measures to prevent new mpox infections, among them, was to wash hands with soap or use an alcohol-based hand sanitiser, in addition to using personal protective equipment such as masks. In addition, the Ministry informed that veterinary quarantine procedures should be taken for animals that present the disease. *: The country's Centre for Disease Control and Border Health Protection Unit are monitoring the situation. The Ministry of Health has put in place infection prevention protocols at the border. Minister for Health Ifereimi Waqainabete said that the Ministry is on high alert after three suspected cases of mpox returned negative results. *: On July 11th of 2022, Frances National Authority for Health released vaccines to the public with the hope of vaccinating vulnerable groups including sex workers and MSM communities. In total, the Directorate General of Health sent out 30,000 vaccines, though it's unclear how many were administered to citizens. *: Fabian Leendertz of the
Robert Koch Institute The Robert Koch Institute (RKI) is a German federal government agency and research institute responsible for disease control and prevention. It is located in Berlin and Wernigerode. As an upper federal agency, it is subordinate to the Federa ...
described the outbreak as an epidemic that would not last long: "The cases can be well isolated via contact tracing and there are also drugs and effective vaccines that can be used if necessary." *: On 26 May, the Minister of Health of Guatemala, Francisco Coma, informed that the Ministry declared an epidemiological alert on the borders of the Central American country, with the objective of detecting possible cases of mpox. The minister also mentioned that one of the main transmissions of mpox is from injuries and body fluids as well as contact with contaminated clothing. *: Union Health Minister Mansukh Mandaviya directed the National Centre for Disease Control and the ICMR to keep a close watch and monitor the situation. The Union Health Ministry has also directed airport and port health officers to be vigilant, according to official sources. They have been instructed to isolate and send samples to the National Institute of Virology of any sick passenger with a travel history to infected countries. *: When cases of mpox were reported in Australia in May 2022, they triggered the alert of health authorities in Indonesia. Mohammad Syahril, ministry spokesperson, urged medical personnel and the country's population to be alert and aware of the symptoms of the disease. *: The
Health Service Executive The Health Service Executive (HSE) () is the publicly funded healthcare system in Ireland, responsible for the provision of health and personal social services. It came into operation on 1 January 2005. The current director-general is Berna ...
(HSE) has set up a multidisciplinary incident management team to prepare for the possible arrival of mpox, and infectious diseases experts are on alert for patients with symptoms of the virus. On 26 July, the Government of Ireland confirmed the issuing of a vaccination for specific groups and to increase awareness. *: The Japanese health ministry confirmed its first case of mpox on 25 July 2022. It was detected from a man in his 30s residing in the Tokyo area. *: On 23 May, the Ministry of Health and the National Public Health Institute drafted a document of recommendations and measures to help prevent the spread of the disease. In a press statement, healthcare authorities have declared that the situation is being closely monitored. *: On 21 May, the Ministry of Health said that they were monitoring the situation with Europe. The National Infectious Diseases Department of the HLC and refrained from close contact activities until the infection has resolved. *: On 27 May, the Malaysian Ministry of Health reactivated the MySejahtera app to provide information and surveillance on mpox. *: In May, Mexican health authorities have posted notices in clinics and hospitals for the purpose of identifying suspected cases in the country. In addition, the Ministry of Health issued an epidemiological alert on 26 May 2022. *: In May, several regional directors of the Moroccan Ministry of Health coordinated a surveillance system for mpox with the Directorate of Epidemiology and Disease Control to prevent cases of mpox from European countries from spreading to Morocco, according to the newspaper. Due to the "Marhaba 2022" operation, an operation that aims to facilitate the travel of Moroccans living abroad by sea when they travel during the summer period, sanitary measures have already been put in place. *: The Netherlands started vaccinating people considered 'at risk' for mpox infection at the end of July 2022. This includes people on
pre-exposure prophylaxis Pre-exposure prophylaxis (PrEP), is the use of medications to prevent the spread of disease in people who have not yet been exposed to a disease-causing agent. Vaccination is the most commonly used form of pre-exposure prophylaxis; other forms of ...
for HIV prevention. *: The director general of the NCDC, Ifedayo Adetifa, advised the Nigerian population to avoid eating
bush meat A bush or shrub is a small or medium woody plant. Bush or Bushes may also refer to: People * Bush (surname), including any of several people with that name ** Bush family, a prominent American family that includes: ***Prescott Bush (1895-1972), ...
to prevent new mpox infections, in addition to storing food properly to avoid being contaminated by rodents, as mpox is a viral
zoonosis A zoonosis (; plural zoonoses) or zoonotic disease is an infectious disease of humans caused by a pathogen (an infectious agent, such as a virus, bacterium, parasite, fungi, or prion) that can jump from a non-human vertebrate to a human. When ...
. *: Former health secretary
Francisco Duque III Francisco Tiongson Duque III (; born February 13, 1957) is a Filipino people, Filipino physician and government official who served as Secretary of Health (Philippines), Secretary of Health in the Presidency of Rodrigo Duterte, Cabinet of Presi ...
said that the Philippines was intensifying its border control measures amid the threat of the monkeypox virus. The health department stated it is exploring potential sources of mpox vaccines and antivirals. *: On 21 May, the Saudi Ministry of Health stated that they are ready to monitor and investigate cases of mpox, if any occurs. They added that it also has an integrated preventive plan to deal with such cases if they appear, including identifying suspected and confirmed cases. *: Badara Ly of the Ministry of Health and Social Action, spoke about the creation of a contingency plan in Senegal during an online conference with the WHO in May, in addition the doctor alerted the health system and advised the creation of fact sheets on prevention methods and reinforcement of screening in border areas. *: On 26 May, the National Institute for Communicable Diseases (NICD) gave a communiqué on how the virus is transmitted, and the institute stated that the 2022 outbreak is the largest outbreak of mpox outside of endemic regions. In addition, the NICD affirmed that the virus mainly spreads in tropical forest areas in West and Central Africa. *: On 30 May, the
Taiwan Centers for Disease Control The Taiwan Centers for Disease Control (CDC; ) is the agency of the Ministry of Health and Welfare of the Republic of China (Taiwan) that combats the threat of communicable diseases. Central Epidemic Command Center (CECC) The Central Epidem ...
officially listed mpox as a notifiable infectious disease, and on 23 June, mpox was officially upgraded to a second-class notifiable infectious disease, which means that confirmed cases must be notified within 24 hours, and if necessary, isolation treatment may be implemented in designated isolation treatment institutions. *: On 24 May, the Department of Disease Control (DDC) started screening all overseas passengers from Central African countries and other outbreak countries at international airports. On 26 May 2022, the DDC set up an emergency operations center to monitor the outbreak situation and plan for a possible outbreak in the kingdom.
Anutin Charnvirakul Anutin Charnvirakul (, ; born 13 September 1966) is a Thai politician who has served as the Minister of Interior and Deputy Prime Minister since 2023. From 2019 to 2023 he was the Minister of Public Health in Prayut Chan-o-cha's government and ...
, Minister of Public Health, said that the government is seeking a smallpox vaccine from the WHO to bolster the public's immunity in case of a viral outbreak. On 30 May, the local news reported the first case of mpox in the country. The patient was a passenger who was transiting from Europe to Australia via Bangkok. However, the patient's symptoms developed and were diagnosed in Australia. Multiple traces of mpox DNA were detected in non-sewered wastewater in Bangkok between late June and August, and the first clinical case was reported on July 21. *: On 22 May, Education Secretary
Nadhim Zahawi Nadhim Zahawi (; ; born 2 June 1967) is an Iraqi-born British former politician who served in various ministerial positions under prime ministers Theresa May, Boris Johnson, Liz Truss, and Rishi Sunak from 2018 to 2023. He most recently served ...
said "we're taking it very, very seriously" and that the UK government had already started purchasing smallpox vaccines. The
Terrence Higgins Trust Terrence Higgins Trust is a British charity that campaigns about and provides services relating to HIV and sexual health. In particular, the charity aims to end the transmission of HIV in the UK; to support and empower people living with HIV, to ...
and British Association for Sexual Health and HIV (BASHH) expressed concern about the impact on sexual health services in the United Kingdom. *: On 22 May, President
Joe Biden Joseph Robinette Biden Jr. (born November 20, 1942) is an American politician who was the 46th president of the United States from 2021 to 2025. A member of the Democratic Party (United States), Democratic Party, he served as the 47th vice p ...
commented "they haven't told me the level of exposure yet but it is something that everybody should be concerned about". National security advisor Jake Sullivan told reporters the US has a vaccine that is relevant to treating mpox. On 25 May, the CDC issued an alert for gay and bisexual men to be especially vigilant. In addition, the CDC placed its mpox travel alert at "Level 2", following reports of cases in Australia and several countries in Europe. Beginning 18 July, Sonic Healthcare USA started testing for mpox using CDC's orthopoxvirus test, which includes monkeypox virus at Sonic Reference Laboratory in Austin, Texas. *: On 24 May, Vietnam's Ministry of Health asked border localities to increase surveillance to detect possible cases of mpox.


Dependent territories

*: On 31 May, a Strategic Coordination Group met to discuss Gibraltar's state of preparedness in the eventuality that a case of mpox was confirmed in the territory amid the rapid rise of cases in the United Kingdom and Spain.


Cases per country and territory

This is a table of confirmed mpox cases in countries and territories during 2022. Countries whose 2022 timeline precede the 6 May index case are shaded orange. The table does not include countries where suspected cases were reported but later discarded.


Timeline of first confirmed cases by country or territory


Timeline of suspected cases by country or territory

''Countries listed below had only suspected cases at the time of reporting. Some countries reported confirmed cases after reporting suspected cases (i.e.
Greece Greece, officially the Hellenic Republic, is a country in Southeast Europe. Located on the southern tip of the Balkan peninsula, it shares land borders with Albania to the northwest, North Macedonia and Bulgaria to the north, and Turkey to th ...
,
Morocco Morocco, officially the Kingdom of Morocco, is a country in the Maghreb region of North Africa. It has coastlines on the Mediterranean Sea to the north and the Atlantic Ocean to the west, and has land borders with Algeria to Algeria–Morocc ...
,
Turkey Turkey, officially the Republic of Türkiye, is a country mainly located in Anatolia in West Asia, with a relatively small part called East Thrace in Southeast Europe. It borders the Black Sea to the north; Georgia (country), Georgia, Armen ...
,
Ecuador Ecuador, officially the Republic of Ecuador, is a country in northwestern South America, bordered by Colombia on the north, Peru on the east and south, and the Pacific Ocean on the west. It also includes the Galápagos Province which contain ...
,
Peru Peru, officially the Republic of Peru, is a country in western South America. It is bordered in the north by Ecuador and Colombia, in the east by Brazil, in the southeast by Bolivia, in the south by Chile, and in the south and west by the Pac ...
). Countries listed several times reported suspected cases again after they discarded suspected cases before.''


Timeline of first deaths by country or territory (in countries with initial 2022 detection from 6 May onwards)


See also

* Mpox in the Democratic Republic of the Congo * Mpox in Nigeria * 2023 Crimean–Congo hemorrhagic fever outbreak * 2024 mpox epidemic


References


External links


Monkeypox outbreak
– by the
World Health Organization The World Health Organization (WHO) is a list of specialized agencies of the United Nations, specialized agency of the United Nations which coordinates responses to international public health issues and emergencies. It is headquartered in Gen ...

2022 Mpox Outbreak Global Map
CDC The Centers for Disease Control and Prevention (CDC) is the national public health agency of the United States. It is a United States federal agency under the Department of Health and Human Services (HHS), and is headquartered in Atlanta, ...

Monkeypox Meter
– nice graphs and maps, but no source/reference links
Monkeypox Tracker
by
BNO News BNO News is an international news agency headquartered in Tilburg, the Netherlands. It provides news wire services to media organizations. Overview BNO News was founded by Michael van Poppel of the Netherlands in May 2007. The company ran a po ...
("This tracker is no longer being updated. The final update was on 11 June 2022.")
Monkeypox_Public_www.global.health
a case-tracking spreadsheet maintained by the nonprofit Global.Health {{DEFAULTSORT:Mpox outbreak, 2022 2022 disease outbreaks 2023 disease outbreaks 2022 in LGBTQ history 2023 in LGBTQ history 2020s epidemics May 2022 July 2022 June 2022 August 2022 2022-2023 Public health emergencies of international concern