Bed bugs
Bed bugs are insects from the genus ''Cimex'' that feed on blood, usually at night. Their bites can result in a number of health impacts including skin rashes, psychological effects, and allergic symptoms. Bed bug bites may lead to skin changes ...
occur around the world. Rates of infestations in
developed countries
A developed country (or industrialized country, high-income country, more economically developed country (MEDC), advanced country) is a sovereign state that has a high quality of life, developed economy and advanced technological infrastruct ...
, while decreasing from the 1930s to the 1980s, have risen dramatically since the 1980s. Previous to this, they were common in the
developing world
A developing country is a sovereign state with a lesser developed industrial base and a lower Human Development Index (HDI) relative to other countries. However, this definition is not universally agreed upon. There is also no clear agreem ...
but rare elsewhere. The increase in the developed world may have been caused by the growth of international travel, resistance to
insecticide
Insecticides are substances used to kill insects. They include ovicides and larvicides used against insect eggs and larvae, respectively. Insecticides are used in agriculture, medicine, industry and by consumers. Insecticides are claimed to b ...
s, and the use of new pest control methods that do not affect bed bugs.Archive /ref>
The fall in bed bug populations after the 1930s in the developed world is believed to be partly due to the usage of
DDT
Dichlorodiphenyltrichloroethane, commonly known as DDT, is a colorless, tasteless, and almost odorless crystalline chemical compound, an organochloride. Originally developed as an insecticide, it became infamous for its environmental impacts. ...
to kill household pests such as
cockroach
Cockroaches (or roaches) are a paraphyletic group of insects belonging to Blattodea, containing all members of the group except termites. About 30 cockroach species out of 4,600 are associated with human habitats. Some species are well-known as ...
es. The invention of the
vacuum cleaner
A vacuum cleaner, also known simply as a vacuum or a hoover, is a device that causes suction in order to remove dirt from floors, upholstery, draperies, and other surfaces. It is generally electrically driven.
The dirt is collected by either a ...
and simplification of furniture design may have also played a role. Others believe it might simply be the cyclical nature of the organism.
Worldwide
Bed bugs are increasing in Europe, the US, Canada and Australia. The infestations have been occurring in a wide range of facilities in the developed world in recent years including: hotels (from backpacker to five star), overnight trains, private homes, cruise ships, schools, hospitals and homeless shelters. These infestations are occasionally of both types of bed bugs (common and tropical). The increased rates of infestations have been matched by increased media coverage. Pest management companies have also seen an increase in calls regarding bed bugs during the 2000s.
United Kingdom
Figures from one
London
London is the capital and largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary down to the North Sea, and has been a majo ...
borough show reported bed bug infestations doubling each year from 1995 to 2001. There is also evidence of a previous cycle of bed bug infestations in the U.K. in the mid-1980s. In 2010 the increase of infestation in UK was estimated to be around 24%. In the hot summer of 2018 it was reported that bedbug infestations had been increasing year-on-year in UK cities since 2006, with no sign of levelling off. This was considered likely to be due to increased temperatures. Bedbugs were commonly found in seats on London buses and
Tube
Tube or tubes may refer to:
* ''Tube'' (2003 film), a 2003 Korean film
* ''The Tube'' (TV series), a music related TV series by Channel 4 in the United Kingdom
* "Tubes" (Peter Dale), performer on the Soccer AM television show
* Tube (band), a ...
trains.
United States
Bed bugs have been reported in all 50 states. The U.S.
National Pest Management Association
The National Pest Management Association (NPMA), is a non-profit trade association founded in 1933 that represents the interests of the professional pest management and pest control industries in the United States. The Steritech Group, a pest-management company based in
Charlotte
Charlotte ( ) is the List of municipalities in North Carolina, most populous city in the U.S. state of North Carolina. Located in the Piedmont (United States), Piedmont region, it is the county seat of Mecklenburg County, North Carolina, Meckl ...
,
North Carolina
North Carolina () is a state in the Southeastern region of the United States. The state is the 28th largest and 9th-most populous of the United States. It is bordered by Virginia to the north, the Atlantic Ocean to the east, Georgia and So ...
, claimed that 25% of the 700 hotels they surveyed between 2002 and 2006 needed bed bug treatment. The resurgence led the
United States Environmental Protection Agency
The Environmental Protection Agency (EPA) is an independent executive agency of the United States federal government tasked with environmental protection matters. President Richard Nixon proposed the establishment of EPA on July 9, 1970; it be ...
to hold a National Bed Bug Summit in 2009.
Numbers of reported incidents in
New York City
New York, often called New York City or NYC, is the List of United States cities by population, most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the L ...
rose from 500 in 2004 to 10,000 in 2009 mostly in Brooklyn area. In August 2010, bed bugs were found in the Elle Fashion Hachette building in New York City. After suspected infestation, a beagle trained in sniffing bed bugs was used to confirm their presence. Office workers were told to work from home while the building was being treated. Although largely thought to only cause problems in less maintained and dirty environments, there is an increasing incidence of bed bugs for infesting indoor environments of high maintenance standards.
One recent theory about bed bug reappearance is that they never truly disappeared from the United States, but may have been forced to alternative hosts. Consistent with this is the finding the bed bug DNA shows no evidence of an evolutionary bottleneck. Furthermore, investigators have found high populations of bed bugs at poultry facilities in
Arkansas
Arkansas ( ) is a landlocked state in the South Central United States. It is bordered by Missouri to the north, Tennessee and Mississippi to the east, Louisiana to the south, and Texas and Oklahoma to the west. Its name is from the Osage ...
. Poultry workers at these facilities may be spreading bed bugs, unknowingly carrying them to their places of residence and elsewhere after leaving work.
In November 2016 a media report noted that tropical bed bugs, ''Cimex hemipterus'', which had been extirpated from the state during
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...
Weather.com
The Weather Company is a weather forecasting and information technology company that owns and operates weather.com and Weather Underground. The Weather Company has been a subsidiary of the Watson & Cloud Platform business unit of IBM since 2016. ...
Canada
Bed bug infestations have been becoming an increasing issue in urban environments. In a Toronto, Canada study, the mean number of treatments required per affected location was highest at dormitories, hotels, homeless shelters, and rooming houses. Suspected reasons for this increase include increasing world travel, high exchange rates of residents, reluctance to use insecticides because of concerns regarding toxicity, and
insecticide resistance
Pesticide resistance describes the decreased susceptibility of a pest population to a pesticide that was previously effective at controlling the pest. Pest species evolve pesticide resistance via natural selection: the most resistant specimens su ...
. 65 Toronto homeless shelters were surveyed and 31% reported past or present bed bug infestations.
Bed Bugs
Bed bugs are insects from the genus ''Cimex'' that feed on blood, usually at night. Their bites can result in a number of health impacts including skin rashes, psychological effects, and allergic symptoms. Bed bug bites may lead to skin changes ...