First U.S. detection of virulent H5N9 strain, at a California duck farm, draws scrutiny as evidence of genetic reassortment ...

The newly reported H5N9 strain was found Monday at a duck farm in Merced County, California, according to the World ...

A California duck farm has culled thousands of birds as the virus seems to be trading genetics with other viruses ...

What is H5N9 and how is it different from H5N1? Scientists classify bird flu viruses by which kind of two key proteins are ...

US officials are investigating the appearance of a strain of bird flu identified in the US for the first time, a worrying ...

A new strain of H5N9 bird flu was detected at a commercial duck operation in California's Merced County. All the ducks were ...

The United States has reported its first outbreak of H5N9 bird flu in poultry on a duck farm in California, the World ...

Bird flu infections around the U.S. have forced mass cullings and resulted in the deaths of zoo animals and pets ...

Learn about the new H5N9 bird flu strain in the US, its impact on food safety and prices, plus expert advice on protecting ...

Health officials have detected a new strain of bird flu, the H5N9, raising concerns about potential changes in the virus.

Bird flu pops up every year in the same way that flu season does for humans. Each time there's a different strain as ...

According to the Centers for Disease Control and Prevention, 67 people in the U.S. have been infected with H5N1 bird flu. One ...