Yellow fever is a dangerous mosquito-borne virus that, for hundreds of years, has caused sporadic, deadly outbreaks in the tropics of South America, Central America, and Africa. According to a new ...

Human activity continues to expand ever further into wild areas, throwing ecology out of balance. But what begins as an ...

Human expansion in the Amazon increases contact between cities and forests, raising the risk that diseases like yellow fever ...

Add Yahoo as a preferred source to see more of our stories on Google. Experts are warning that yellow fever — which hasn’t had a major outbreak in the U.S. since 1905 — could make a comeback. (Photo ...

An ongoing outbreak of yellow fever in Colombia is sickening and killing rare and threatened monkey species in captivity, a new study shows. Between February and May 2025, authorities reported eight ...

How will COVID-19 end? Decisively, with a vaccine, or slowly, with herd immunity? Will it downshift to a recurring nuisance and a manageable condition? Or will we see an amalgam of endgames, varying ...

In 1855, the nation turned its attention in shock toward the tragedy unfolding in Norfolk and Portsmouth. The American public clamored for fresh reports about the latest death tolls in the Virginia ...