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 ...

A century after early warnings, researchers now fear that yellow fever could erupt beyond its historical strongholds, posing an unprecedented threat to billions in the Asia-Pacific and beyond. Study: ...

Mosquito-transmitted virus infections are on the rise and their spread is accelerating in Texas, Florida and elsewhere in the American South. With the rise of mosquito-borne illnesses, infectious ...

The virus that causes yellow fever has a permanent foothold in the Brazilian Amazon, where the pathogen is widespread in wild animals living in the region’s forest. Now scientists have discovered that ...

Mosquito-transmitted viral infections are on the rise across the Gulf Coast. Local experts warn yellow fever could eventually reemerge in the Houston area. Yellow fever first devastated the southern ...

Colombia’s health ministry declared a nationwide health emergency on Thursday due to the “active circulation” of yellow fever. Since September 2024, there have been 75 recorded cases of yellow fever ...

A species of invasive, "aggressive" mosquitoes known for transmitting yellow fever is spreading in California, according to local health officials. Multiple counties across the state, including Contra ...

Researchers show how specific immune cells are activated by the vaccine -- an important starting point for the development of new vaccines. Researchers show how specific immune cells are activated by ...