The new study is more evidence that the official U.S. tally of confirmed human bird flu infections — 68 in the last year — is ...

She said people who are getting infected with avian influenza have had clear risk factors. "Meaning they've come in contact with what appear to be sick, sick birds of some sort," Forrester said.

AP He said it shows that officials cannot fully understand bird flu transmission by only tracking people who go to medical clinics with symptoms. CDC researchers went to an American Association of ...

He said it shows that officials cannot fully understand bird flu transmission by only tracking people who go to medical clinics with symptoms. DDPHE warns against wild bird, animal contact On ...

He said it shows that officials cannot fully understand bird flu transmission by only tracking people who go to medical clinics with symptoms. CDC researchers went to an American Association of ...

Bird flu has made eggs more expensive — does it also make them unsafe to eat? “This means that people are being infected, likely due to their occupational exposures, and not developing signs ...

Roughly 650,000 people across about 200 countries participated in last year’s bird count. They found 7,920 different species – roughly two-thirds of the over 10,000 known species on the planet.

Play the USA TODAY Daily Crossword Puzzle. The report adds to a growing body of evidence that suggests people may have asymptomatic bird flu infections, or infections showing no obvious symptoms.