The winter flu season features two types of influenza. Here's what you need to know about them and how they differ.

When H5N1 first came to the attention of infectious disease professionals 20 years ago, there was concern it could mutate and ...

Yahoo News provides the latest updates on the spread of bird flu in the U.S., and its effect on rising egg prices and ...

The U.S. winter virus season is in full force, and by one measure is the most intense in 15 years.

There have been an estimated 24 million flu illnesses, 310,000 hospitalizations and 13,000 deaths so far this season — but the Trump administration has made it harder to communicate vital health data.

The views expressed in this commentary are solely those of the writer. CNN is showcasing the work of The Conversation, a ...

Is the COVID-19 vaccine safe and effective for infants and young children? Here's what parents need to know about vaccinating their babies and toddlers against COVID-19.

(NEXSTAR) – The flu is spreading far and wide across the U.S. – and influenza A is largely to blame. Of all the flu tests ...

REDWOOD CITY — A stray cat in San Mateo County recently tested positive for bird flu, officials said Thursday. The case is ...

Greene County flu cases have nearly doubled. In January 2025, the county had one of its highest flu rates since 2003.

Dairy cattle in Nevada have been infected with a new type of bird flu that's different from the version that has spread in ...

Bird flu risk is low for people and there are no identified New York state human cases, but people should avoid direct ...