What 3rd case of bird flu with unknown source of infection could mean in fight against disease So far, 67 human bird flu cases have been confirmed in the U.S., the CDC says.

A California child was recently confirmed as the third human case of bird flu with a known source of infection. What could this mean in our fight against the disease?

A patient has been hospitalized with a severe case of H5N1 infection in Louisiana, the CDC said. This is first instance of a severe illness linked to bird flu in the U.S.

H5N1 bird flu was detected in a pig in Oregon, the Department of Agriculture said.

The CDC has confirmed a total of 66 human cases of bird flu across the United States as of Friday, although the number is believed to be higher.

FRESNO, Calif. (KFSN) -- A third human case of the bird flu has been confirmed in the Central Valley. The California Department of Public Health says the CDC confirmed the case earlier today.

Bird flu is continuing to spread in animals across the United States more than a year after the first human case was detected. Since then, at least 70 people have fallen ill and at least one death ...

A third case of bird flu in a backyard flock has been confirmed in Monroe County, state agriculture officials said.

A resident of southwestern Louisiana has been hospitalized with a severe case of bird flu linked to a backyard flock.

A positive case of H5 avian influenza was detected at a commercial broiler farm in Dorchester County, the Maryland Department of Agriculture said Monday.

U.S. cases of bird flu have been relatively mild and limited to farm workers who handled sick animals – a sign the virus may not be well suited to infecting humans in its current state.