World Health OrganizationSpecialized agency of the United NationsThe World Health Organization (WHO) is a specialized agency of the United Nations (UN) which coordinates responses to international public health issues and emergencies. It is headquartered in Geneva, Switzerland, and has six regional offices and 150 field offices worldwide. Only sovereign states are eligible to join, and it is the largest intergovernmental health organization at the international level.
World Organisation for Animal HealthThe World Organisation for Animal Health (WOAH), formerly the Office International des Epizooties (OIE), is an intergovernmental organization founded in 1924, coordinating, supporting and promoting animal disease control. The primary objective of WOAH is to control epizootic diseases and prevent their spread.
Eradication of infectious diseasesThe eradication of infectious diseases is the reduction of the prevalence of an infectious disease in the globalhost population to zero. Two infectious diseases have successfully been eradicated: smallpox in humans, and rinderpest in ruminants. As of 2026, the Carter Center International Task Force for Disease Eradication has targeted two human diseases for eradication: dracunculiasis (Guinea worm), and lymphatic filariasis (elephantiasis).
Plague (disease)Plague is an infectious disease caused by the bacteriumYersinia pestis. Symptoms include fever, weakness, headache and black lips. Usually, this begins one to seven days after exposure. There are three forms of plague, each affecting a different part of the body and causing associated symptoms.
Ministry of Health (Brazil)The Ministry of Health (Portuguese: Ministério da Saúde) is a cabinet-level federalministry in Brazil. Since March 2025, the Health Minister is Alexandre Padilha. The Ministry oversees the Sistema Único de Saúde, the world’s largest integrated public health system. HistoryThe first public health guidelines in the country were created by the monarchy in 1808.
Public Health Agency of CanadaThe Public Health Agency of Canada (PHAC; French: Agence de la santé publique du Canada, ASPC) 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. HistoryThe PHAC was formed because of a series of official inquiries about the severe SARS crisis in Canada .
SmallpoxSmallpox was an infectious disease caused by the variola virus, which belongs to the genus Orthopoxvirus. The last naturally occurring case was diagnosed in October 1977, and the World Health Organization certified the global eradication of the disease in 1980, making smallpox the only human disease to have been eradicated. The initial symptoms of the disease included fever and vomiting. This was followed by formation of ulcers in the mouth and a skin rash.
Yellow feverViral diseaseMedical conditionYellow fever is a viraldisease of typically short duration. In most cases, symptoms include fever, chills, loss of appetite, nausea, muscle pains—particularly in the back—and headaches. Symptoms typically improve within five days. In about 15% of people, within a day of improving the fever recurs, abdominal pain occurs and liver damage begins, causing yellow skin. If this occurs, the risk of bleeding and kidney problems is increased.
CholeraBacterial infection of the small intestineMedical conditionCholera () is an infection of the small intestine by some strains of the bacteriumVibrio cholerae. Symptoms may range from none, to mild, to severe. The classic symptom is large amounts of watery diarrhea lasting a few days. Vomiting and muscle cramps may also occur. Diarrhea can be so severe that it leads within hours to severe dehydration and electrolyte imbalance.
Lead poisoningPoisoning caused by lead in the bodyMedical conditionLead poisoning, also known as plumbism and saturnism, is a type of metal poisoning caused by the presence of lead in the human body. Symptoms of lead poisoning may include abdominal pain, constipation, headaches, irritability, memory problems, infertility, numbness and tingling in the hands and feet. Some of the effects are permanent. In severe cases, anemia, seizures, coma, or death may occur.
Department of Agriculture, Fisheries and Forestry (Australia)The Department of Agriculture, Fisheries and Forestry (DAFF) is a department of the Australian Government that was created on 1 July 2022. It was previously a part of the Department of Agriculture, Water and the Environment.
Department of Health, Disability and AgeingThe Department of Health, Disability and Ageing is a department of the Australian Government that is responsible for funding and regulating health care, aged care, and certain disability programs. It is also involved in preventative health promotion and public health education initiatives.*As an Amazon Associate I earn from qualifying purchases.