The word 'virus' gets tossed around a lot. Here's what actually counts, what to watch for, and how to stay two clicks ahead ...

They came for blood — and left behind something worse. Thousands of people in China have been infected with a painful mosquito-borne virus, triggering the country’s most aggressive public health ...

A little-known disease spread by insect bites has turned deadly, and health officials are sounding the alarm. More than 8,000 cases of Oropouche virus have been reported this year as of August 1. Most ...

Experts warn about the possibility of a new pandemic in 2025 as the H5N1 bird flu virus spreads across all 50 states, impacting US dairy farms and leading to human infections. Here's what to know.

The CDC issued a travel warning for China due to a chikungunya virus outbreak, advising travelers to take precautions. Chikungunya is a mosquito-borne virus causing fever, joint pain, and other ...

Influenza experts are acknowledging that they were almost completely surprised by the way the current swine flu outbreak unfolded, so much so it is forcing the world to rethink what a pandemic is and ...