The first U.S. H5N9 outbreak has raised concerns as scientists warn of evolving bird flu risks—here's what you need to know about the symptoms.

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

The spread of bird flu (H5N1) has caused egg prices to rise and shelves to empty across Louisiana and the U.S. The cost of ...

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

A new strain of a highly pathogenic and rare strain of bird flu has been reported on a duck farm in central California.

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

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

FDA issues proposed rule on front-of-package nutrition labeling. The FDA has released its proposed rule on front-of-package nutrition labeling ...

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

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