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 ...

Yellow fever is making a troubling comeback across Africa and the Americas, prompting fresh warnings from the World Health Organisation (WHO) over the risks posed by low vaccination coverage, climate ...

The mosquito-borne disease known as yellow fever is primed for a resurgence, say medical experts, and the US is woefully unprepared. Yellow fever joins other diseases — malaria, dengue, leishmaniasis ...

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An outbreak in Angola and the Democratic Republic of Congo has raised concerns about the infamous and fearsome disease — once a scourge of the... No one knows for sure, but scientists believe that ...