The worst flu season in years is swamping California, prompting a renewed surge in hospitalizations as officials warn the ...

Yahoo News provides the latest updates on the spread of bird flu in the U.S., and its effect on rising egg prices and ...

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 ...

The flu vaccine is developed using data monitored from around the world to predict what the most common strain will be. The ...

Egg prices in the U.S. have surged due to ongoing bird flu outbreaks, which have led to the culling of over 21 million egg-laying birds across multiple states.

New Mexico, Texas and Nebraska are among the states with the highest number of people showing flu-like symptoms.

Cases of the seasonal flu in the U.S. have reached their highest numbers in more than a decade, according to the Centers for Disease Control and Prevention.

Arkansas is battling flu season, with the Arkansas Department of Health reporting 30 flu-related deaths.One of those deaths ...

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 ...