A new Centers for Disease Control and Prevention study suggests that bird flu may be spreading under the radar in the U.S. In ...

Sonya Stokes, an emergency room physician in the San Francisco Bay Area, braces herself for a daily deluge of patients sick ...

But like the normal seasonal flu, bird flu changes over time, so the vaccine would need to be updated with the current strain before it would be effective. Health officials haven’t deemed that ...

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 ...

Avian influenza H5N1 continues to spread. A second type of the virus, D1.1, has been detected in dairy cattle in Nevada, US. What does it mean for people?

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 ...

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 ...