The progression of the species-jumping disease has been unprecedented, including the first-ever U.S. cases of infections in ...

The map of flu activity across the United States continues to darken, both figuratively and literally, as case numbers spike ...

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

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

The United States has reported its first outbreak of H5N9 bird flu on a duck farm in California, according to the World Organization for Animal Health (WOAH) on Monday.Why It MattersH5N9 is a rare ...

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

Most of the UK has been placed under an avian influenza prevention zone after cases show no sign of stopping. The new zone to ...

Latest data shows which counties have been hardest hit by bird flu outbreaks among poultry flocks as the human case count climbs.

FOX 13’s Kellie Cowan spoke with a Bay Area doctor about the spread of highly contagious illnesses in the Tampa Bay area.

President Trump announced he's pulling the U.S. from the WHO. Now researchers are scrambling to understand what that means for the H5N1 bird flu pandemic.

"The bottom line is that withdrawing from the WHO makes Americans and the world less safe," says Dr. Tom Frieden, president ...

Local research and biotechnology laboratories Trudeau Institute and Ampersand Biosciences have received a $1 million grant to ...