San Mateo County public health officials reported finding H5N1 bird flu in a pet cat and a backyard poultry flock.

With data showing a significant rise in flu cases nationwide, medical experts are describing it as the worst flu season since ...

NEW YORK (AP) — The U.S. winter virus season is in full force, and by one measure is the most intense in 15 years.

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

It's an unusual winter for respiratory illnesses. The flu is peaking twice: once in early January and again in February. Meanwhile, it's the mildest COVID winter since the pandemic began.

Trump administration political appointees have taken steps in recent weeks to exert unprecedented influence over the Centers for Disease Control and Prevention's flagship medical research publication, ...

Gov. Kathy Hochul on Friday ordered the temporary shutdown of live bird markets in New York City, Westchester, and Long ...

Live poultry markets in New York City raced to sell off all their chickens and other fowl Friday after seven cases of avian ...