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

A pandemic is not inevitable, scientists say. But the outbreak has passed worrisome milestones in recent weeks, including ...

The Louisiana patient was hospitalized with a severe case of bird flu in the first death in the U.S. caused by the H5N1 virus ...

Bird flu cases are still rising in the U.S. as the virus continues to devastate poultry farms. More than 145 million chickens ...

H5N9 is a rare subtype of the influenza A virus that can cause highly pathogenic avian influenza (HPAI), also known as bird ...

Large-scale mortality among snow geese has led the Pennsylvania Game Commission to declare Lehigh Valley the epicenter of a ...

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

U.S. authorities also detected the more common H5N1 strain on the same farm in Merced County, California, they said in a ...

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

Bird flu has sickened several dozen people around the U.S. and left one person dead while egg price hikes and shortages have ...

The first human death caused by H5N1 in the U.S. was reported in Louisiana on Jan. 6. Here's what to know about bird flu.

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