A new paper from a team of Cornell University researchers shows that the highly pathogenic avian influenza H5N1 virus causes ...

H5N1 avian influenza has long been a concerning virus. Since its discovery in 1996 in waterfowl, bird flu has occasionally ...

The H5N1 avian flu is circulating in cows and other mammals. Whether it will make a permanent leap to humans is another ...

New versions of the H5N1 virus are increasingly adept at spreading. Suggestions to either let it rip in poultry or vaccinate the birds could backfire.

HHS Secretary Robert F. Kennedy Jr. and Secretary of Agriculture Brooke Rollins have expressed interest in letting H5N1 ...

Scientists always knew a deadly virus was going to jump from animals to humans: COVID was not the first time it has happened, ...

The first death caused by H5N1 bird flu was reported in January 2025. Some believe the virus could eventually pose a widespread risk to the public.

There have been 68 human cases of bird flu — flu strain H5N1 — in the U.S. since the beginning of 2024, mostly arising from contact with infected cattle and poultry. Infectious disease experts ...

“Bird flu is very deadly to cats, and we urgently need to figure out how widespread the virus is in cat populations to better assess spillover risk to humans,” she said.

Preventing a pandemic means early detection of bird flu strains — surveillance of viral spread and influenza infections in hospitals.

The bird flu virus has infected over 1,000 dairy herds and caused 70+ human cases across America. Learn 5 vital facts about H5N1 and the measured response ...

No bird flu transmission between humans has been documented, and the CDC maintains that the immediate risk to public health is low. But scientists are increasingly worried, based on four key signals.