Bird flu is continuing to spread ... of dairy cows continue to be infected and raw milk samples in several states have tested positive for bird flu, according to federal health officials. MORE: 2nd ...

Health officials are making a renewed call for vigilance against bird flu, but some experts are puzzling over why reports of ...

Federal officials tracking bird flu have found the virus on poultry farms, but experts say the outbreaks are not currently a ...

As bird flu sweeps across US poultry and cattle farms, researchers are racing to find ways to contain the outbreaks before ...

The H5N1 bird flu has been spreading widely ... sooner than any of us would like." California had been a hotspot, with three-quarters of the nation's infections in dairy cattle.

The H5N1 bird flu has been spreading widely among wild birds, poultry and other animals around the world for several years, and starting early last year became a problem in people and cows in the ...

Bird flu is continuing to spread in animals across the United States more than a year after ... but hundreds of dairy cows continue to be infected and raw milk samples in several states have ...

The H5N1 bird flu has been spreading widely among wild birds, poultry and other animals around the world for several years, and starting early last year became a problem in people and cows in the ...

Health officials are making a renewed call for vigilance against bird flu, but some experts are puzzling over why reports of new human cases have stopped. Has the search for cases been weakened by ...