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 ...

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

The California duck farm's strain of H5N9 is different from those earlier cases because this time it is closely related to a ...

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

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

This week, the World Organization for Animal Health reported that it had been notified by the USDA that a November outbreak ...

The government is investigating a rare strain of avian flu, H5N9, detected on a duck farm in central California, according to ...

The H5N9 strain of avian influenza is much more rare than the H5N1 which has been responsible for most of the reported human ...

A new strain of bird flu — H5N9 — has been detected in California’s Merced County at a commercial duck operation. According to the World Organization for Animal Health — an international ...

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