The death toll and economic damage associated with flu highlight its role as one of the most harmful viruses in history.

Bird flu has been rampaging through wildlife and farm animals worldwide. Will it make the long-feared jump to humans?

Nineteen-year-old U.S. Army Pvt. David Lewis set out from Fort Dix on a 50-mile hike with his unit on Feb. 5, 1976. On that bitter cold day, he collapsed and died. Autopsy specimens unexpectedly ...

Amid reports of two confirmed Marburg virus outbreaks in the African countries of Equatorial Guinea and Tanzania, the Centers for Disease Control and Prevention (CDC) released an alert last week for U ...

Alexander Downer told senior colleagues the H5N1 strain of bird flu could mutate into a pandemic ‘with potentially devastating consequences’ for Australia and the world ...

Two of the closest known relatives to SARS-CoV-2 — a pair of bat coronaviruses discovered by researchers in Laos — may transmit poorly in people despite being genetically similar to the ...

As COVID completes its sixth year, official statistics obscure the scale of harm, while Long COVID and excess deaths reveal ...

Bird flu continues to appear to pose a "low risk to the general public" for now, the Centers for Disease Control and Prevention says. But the agency's scientists ran into roadblocks investigating a ...

Five years ago, a cluster of people in Wuhan, China, fell sick with a virus never before seen in the world. This undated electron microscope image made available by the U.S. National Institutes of ...

A new study has identified an influenza virus circulating in pigs that shows multiple traits associated with pandemic potential. Known as H1N2, the virus belongs to a lineage of flu viruses that ...

The tools to stop the spread of HIV are readily available, but experts said they're not getting to the right people.