Investigators trying to determine how the person caught the virus have not been able to confirm the exact strain of flu. Health officials on Thursday said they don’t know how a Missouri person caught ...

A hospitalized patient in Missouri was infected with bird flu despite having had no known contact with dairy cows or other animals associated with an ongoing outbreak, health officials said Friday.

The CDC considers the public health risk from the avian flu to be low, but there are still concerns about the potential spread of the virus. Public health officials in at least one state are now ...

GSK Plc, Sanofi and CSL Ltd. secured $72 million from the United States government to ramp up production of bird flu vaccines ...