Hunain10 months ago

What is yellow fever?

Yellow fever is a viral disease caused by the bite of a mosquito. Many countries still require visitors to be vaccinated for it before entering. Yellow fever is found mainly in certain areas of Africa, Central America, and South America. In certain parts of South America, infections happen less often. They occur usually among forestry and agricultural workers or in travelers to jungle areas. But recent outbreaks have been reported in and around major cities in Brazil. In Africa, infections happen most often in the tropical areas of western and central Africa. But they also happen in cities and jungle areas.