Yellow fever is a mosquito-born disease.
The disease occurs in tropical and subtropical areas. This disease can affect both sexes, all ages and races. Jungle yellow fever, of tropical Central and South America, occurs predominantly among adult males 20 to 40 years old who are exposes in the tropical forests. A certain type of mosquito, Aedes aegypti, is most often responsible for transmitting the virus. Initial symptoms may be dengue-like and include fever, headache, vomiting and backache.