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

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

Dr. Bonnie Henry says the teenager who has tested positive for bird flu is in critical condition and being treated at B.C.

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 ...

Bird flu jumped from cows to California farmworkers this month. Virus symptoms are mild and it has not spread from humans to ...

There are now two strains of H5N1 bird flu circulating in California. The form circulating in dairy cows is known by ...

The CDC said Thursday it is updating its recommendations for testing, treatment and protection for workers who may be exposed animals infected with bird flu.

A person has tested positive in British Columbia, Canadian health officials said, though the results must be sent to another ...

H5N1, the strain of bird flu ravaging herds of cattle, according to the California Department of Public Health ...

It's the first time the virus has been detected in U.S. swine and raises concerns about bird flu's potential to become a ...