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.

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 potentially deadly virus known as “sloth fever” has US officials on alert after Florida reported 20 travel-related cases, including nine last week. Oropouche virus is spread through the bites of ...

A mosquito-borne virus more common in South America has been detected in the United States. Health officials say the ...

An uncommon tick-borne illness called Powassan virus is making headlines in New England right now because a newborn baby in Massachusetts is believed to have it. Here in Connecticut, the CDC says ...

Sara Moniuszko is a health and lifestyle reporter at CBSNews.com. Previously, she wrote for USA Today, where she was selected to help launch the newspaper's wellness vertical. She now covers breaking ...

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 ...

Researchers in China have discovered a new tick-borne illness, Wetland virus. Research shows it has the potential to invade the brain. Right now, China is the only country with cases. That’s the main ...