A92-A99: Arthropod-borne viral fevers and viral haemorrhagic fevers

A95: Yellow fever

Yellow fever is a viral disease primarily spread through mosquito bites, specifically the Aedes and Haemagogus species. It gets its name from the yellowing of the skin and eyes (jaundice) that occurs when the virus affects the liver in more severe cases. It begins much like many other illnesses, with initial symptoms including fever, headache, nausea, muscle pain, and general weakness. These symptoms typically appear 3 to 6 days after exposure to the virus. In some individuals, these symptoms might then disappear only to return with more severe symptoms such as high fever, jaundice, bleeding, and eventually shock and organ failure. Yellow fever mainly occurs in sub-Saharan Africa and South America. Despite being a preventable disease with a safe and effective vaccine, yellow fever still causes severe illness and death in some parts of the world, primarily due to limited access to vaccination.