Although the avian flu (H5N1) virus may not be making the news as frequently, it is still working hard behind the scenes, ...

HHS Secretary Robert F. Kennedy Jr. and Secretary of Agriculture Brooke Rollins have expressed interest in letting H5N1 ...

The Epstein-Barr virus is one of the most common and persistent human viruses in the world, according to the CDC.

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

A deadly animal-borne virus that can also infect humans has resurfaced in South East Queensland, with authorities confirming ...

The Centers for Disease Control and Prevention has ended its emergency response to the H5N1 bird flu and said Monday it will ...

Three-year-old twins Ava and Valli Johnson have always been devoted to one another; riding bikes, reading books and playing ...

Photos: How the 1918 flu and COVID-19 pandemics compare As the U.S. surpass 675,000 COVID-19 deaths, we look back at the 1918 pandemic.

Flu cases are on the rise this season, as vaccination levels fall and COVID-style social distancing falls by the wayside.

One-in-six patients treated with the modified virus as part of a clinical trial saw their tumors disappear completely.