Scientists in Blacksburg have discovered a large, previously unseen virus inside algae. The virus poses no risk to human ...

During a call with U.S. doctors this month, one CDC official noted that there is a seasonality to bird flu: Cases peak in the ...

Did you know that more than 75% of new infectious diseases affecting humans originally come from animals? Bats, in particular, are natural hosts to some of the world's most dangerous viruses, ...

Monkeypox, caused by the monkeypox virus—a close cousin of smallpox—has spread rapidly worldwide. From 2022 to 2025, more than 133,000 cases were reported across 131 countries. In August 2024 ...

Once a pathogen invader, like the flu virus, gets inside your body, you have to respond quickly. Time to turn on your immune system to destroy them. Your first response to infection is fever.