Yellow Fever (jungle yellow fever, urban yellow fever) Last
Reviewed: November 2006 What is yellow fever? Yellow fever is a
mosquito-borne viral disease. The disease occurs in tropical and
subtropical areas. Who gets yellow fever? 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 exposed in the tropical
forests. How is yellow fever spread? A certain type of mosquito,
Aedes aegypti, is most often responsible for transmitting the
virus. These mosquitoes are no longer found naturally in New
York State. What are the symptoms of yellow fever? Initial
symptoms may be dengue-like and include fever, headache,
vomiting and backache. As the disease progresses, the pulse
slows and weakens, and bleeding of the gums and bloody urine
occur. Jaundice may also occur. How soon do symptoms appear?
Symptoms occur within three to six days after exposure. Does
past infection with yellow fever make a