A contagious new COVID-19 variant called NB.1.8.1, aka "Nimbus," is now dominant in the United States, CDC data show. What to know about symptoms and vaccines.

Scientists have known that major outbreaks often originate in wildlife – swine flu, avian flu and even SARS-CoV-2 all started ...

The U.S. Centers for Disease Control and Prevention has accepted recommendations made by a panel of vaccine experts in April, ...

Imagine a virus so lethal that up to 90% of those infected don’t survive. That’s Marburg - a rare but extremely dangerous disease with no known cure. In this video, we explore its history, how it ...

An analysis of mpox virus genomes from individuals infected between 2018 and 2023 has provided insights into how the virus ...

The CDC panel voted against an ingredient that the anti-vaccine movement has long targeted, while Arcadia was acquired by ...

In the shadows of Python Cave, Uganda, a leopard leaps from a guano mound—formed by bat excrement—and sinks its teeth into a ...