Q. What is yellow fever?

The Yellow fever is a viral infection that occurs mainly in Central Africa and in the Amazon region of South America. It is prevented by vaccination and transmitted by many species of mosquitoes of the Aedes genus, including Aedes aegypti e Haemogogus. This infection causes clinical manifestations that range from asymptomatic cases to lethal fulminating cases. Usually the disease begins with fever, malaise, chills, headache, nausea and evolves to jaundice (increase of bilirubin in blood, after which the disease is named), mucosal and internal hemorrhages, hemorrhagic vomiting and renal failure.

The Prevention is done by regular mass vaccination and vaccination of travelers to endemic areas. The combat beside the vector mosquito is also an main prophylactic measure.