The convergence of multiple flu strains in one animal can allow new virus strains to form—just as they did in past pandemics.

Colorado’s outbreak of avian flu in poultry and dairy cattle seems to have died down, though the state continues to monitor ...

Missouri healthcare worker who had contact with a hospitalized patient infected with bird flu developed mild respiratory ...

The H5N1 bird flu has been spreading widely among wild birds, poultry, cows and a growing number of other animals NBC ...

An extensive look at wastewater samples taken across the United States from May to July found traces of the H5N1 bird flu ...

The mandatory testing comes as the total number of infected herds in California has risen to 17. Nationally, officials have ...

A second health worker who cared for a person hospitalized in Missouri with H5N1 bird flu developed mild respiratory symptoms ...

H5 bird flu has not been reported among cattle in Missouri, the CDC said Sept. 6. However, H5 bird flu outbreaks have been reported in commercial poultry ... be diagnosed by signs or symptoms ...

The Centers for Disease Control and Prevention officials said Thursday they still don’t know how a person in Missouri with no known exposures to animals or poultry recently contracted bird flu, ...

The H5N1 bird flu has been spreading widely among wild birds, poultry, cows and a growing number of other animals NBC Universal, Inc. Health officials on Thursday said they don’t know how a ...