New versions of the H5N1 virus are increasingly adept at spreading. Suggestions to either let it rip in poultry or vaccinate the birds could backfire.

A group of researchers says delayed treatment of a type of bird flu now spreading on dairy farms in the United States may ...

The H5N1 bird flu has been spreading widely among wild birds, poultry and other animals around the world for several years, and starting early last year became a problem in people and cows in the U.S.

H5N1 avian influenza has long been a concerning virus. Since its discovery in 1996 in waterfowl, bird flu has occasionally caused isolated human cases that have quite often been fatal. The ...

Bird flu has been circulating worldwide since the 1990 and was first detected in American dairy farms in March 2024. It had infected 70 people as of late February, and killed one.

Public health officials are continuing to monitor as an outbreak of avian flu, also known as bird flu, continues to spread across the country. The strain, known as H5N1, has sickened several ...

By Sara Frueh Over the past three years, bird flu — caused by the avian influenza A (H5N1) virus — has extended its reach around the U.S. and across many species. The virus arrived in wild birds, but ...

While rare, bird flu has infected over 140 cats since 2022, according to government data. Here's how to protect your pets.

No bird flu vaccine is available for cats. They can be exposed any time they're out roaming, so keeping your cat inside is much more important now than it's been in the past.

Bird flu continues to spread quickly through the U.S. farm system because that system is inherently a viral playground. Birds are kept in disgusting, crowded conditions that encourage viral spread.

She recently released a paper reviewing bird flu in infections in cats between 2004 and 2024. Barn cats that died after drinking raw milk were one of the first signs that dairy cows were becoming ...

We don't even know how many cases of bird flu in cats are out there. About 2.6% of cats allowed to roam in one endemic area were found to have antibodies to bird flu (1), but some of the cats that ...