Cases of H5N1 bird flu in U.S. dairy and poultry workers have largely been mild. However, a new case in a British Columbia ...

Health officials began providing the safety gear long before the first human case in California was announced in October.

The H5N1 strain of avian flu is now passing easily among South America's elephant seals and drastically cutting herd ...

After first appearing in birds in Argentina in February of 2023, a "highly pathogenic" strain of H5N1 was spotted in infected ...

Here’s what we know about the bird flu — and what it would take for it to start spreading in humans. In January 2022, health ...

Federal health officials are calling for more testing and treatment of workers on farms with bird flu. The new guidance comes ...

Almost from the beginning of the spread of H5N1 bird flu among farms and ranches in the U.S. earlier this year, experts and ...

A teenager has been left in critical condition after contracting the first presumptive human case of avian influenza in Canada. Expert Sam Scarpino discusses the health risk and potential for spread.

A Canadian teen who is in critical condition after contracting H5N1 bird flu was infected with a version of the virus that is different from the one circulating in U.S. cattle.

There were 21 cases of human bird flu in California on Nov. 6. Thirteen of those cases are in Tulare County. Here's why it matters.

As H5N1 bird flu continues to spread around the US, health officials recently found that 7 percent of dairy workers tested on farms in two states had evidence of recent infection — and some had signs ...

As avian flu spreads in California dairies, new CDC study finds evidence of prior infection in people who felt healthy.