A second subtype of H5 bird flu, known as D1.1, was detected in dairy cattle and infected one worker in the US state of ...

Bird flu cases are still rising in the U.S. as the virus continues to devastate poultry farms. More than 145 million chickens, ducks, turkeys and other fowl have been slaughtered across the United ...

The ongoing outbreak of genotype B3.13 of the H5N1 avian flu virus in dairy cows was first detected in March 2024. The first human cases, in farm workers, followed shortly afterward. Official figures ...

More than 156 million chickens, ducks, turkeys and other fowl have been slaughtered across the United States since the outbreak began in January 2022. One person has been killed.

Maps of bird flu cases show the spread of the virus across the United States. Most people infected with bird flu in the U.S. have had mild symptoms. Symptoms of H5N1 birth flu infection in humans ...

Mason County has its first case of highly pathogenic avian influenza in domestic birds. The flu was detected in a small ...