When the H5N1 outbreak accelerated in October 2025, few anticipated how swiftly it would reshape global food systems. Within ...

H5N1 bird flu has been circulating in U.S. wildlife since late 2021 but has caused only one human fatality. Now a different ...

Scientists warn the H5N1 bird flu virus is evolving rapidly and has been detected on six continents, with 18 human cases ...

The Pan American Health Organization (PAHO) reported that avian influenza A (H5N1) continues to circulate in the Americas, ...

Bird flu, or H5N1, has touched most of the globe, but there is one spot it hasn't reached. Researchers down under are preparing for it, but gaps in bird flu surveillance elsewhere makes it difficult.

Further cases of highly pathogenic avian influenza have been confirmed in commercial poultry in Japan and South Korea, as the ...

Helen Branswell covers issues broadly related to infectious diseases, including outbreaks, preparedness, research, and vaccine development. Follow her on Mastodon and Bluesky. You can reach Helen on ...

A Hawaiian monk seal swims in a pool after receiving a bird flu vaccine at Ke Kai Ola in Kailua-Kona. The endangered Hawaiian ...

Los Angeles County health officials are investigating a case of three cats presumed to have H5N1 bird flu County officials confirmed the disease in two other cats who drank recalled raw milk and died ...

An ongoing outbreak of highly pathogenic avian influenza has affected more than 184 million domestic poultry since 2022 and, ...

On Heard Island, a remote Australian subantarctic island some 4,000 km southwest of Perth, scientists were concerned after ...