Experts are warning that yellow fever — which hasn’t had a major outbreak in the U.S. since 1905 — could make a comeback. (Photo illustration: Yahoo News; photo: Getty Image) When you think of yellow ...

Encephalitis, Yellow Fever, Malaria Disease, Mayaro or Zika Virus Infected Culex Mosquito Parasite Insect Macro. [Courtesy/GettyImages] Kenya has recently experienced a worrying rise in mosquito-borne ...

Yellow fever is a viral illness spread by mosquitoes in some parts of Africa and South America. You can take a single-dose ...

In the 18th and 19th centuries, New Orleanians could count on three things during the summer: a ferocious combination of heat and humidity, plenty of rain and an outbreak of yellow fever. Until Dr.