Bird flu has spread widely in poultry, causing egg shortages. Virus spillover has occurred in various mammal species, including humans. H5N1 does not currently have the ability to spread human to ...

A new report suggests that more Americans may be walking around with bird flu − and not even know it. Researchers from the Centers for Disease Control and Prevention randomly tested 150 ...

As a worker on a Texas dairy farm tested positive for the avian flu, Dr. Leana Wen has the latest guidance on bird flu transmission, symptoms and food safety.

The outbreak of bird flu in U.S. dairy cows has now been confirmed in Minnesota and Iowa, bringing to 11 the total number of affected states, which have been encouraged to ramp up testing efforts ...

Last year, bird flu killed more than 40 million egg-laying birds. Including ducks and chickens, 148 million birds have been ordered euthanized since H5N1 began spreading around the U.S. in 2022 ...

Bird flu outbreak spreads to mammals in 31 states. At least 21 cats infected. What to know Among those infected are cows in 12 states, foxes, mice, striped skunks, mountain lions and harbor seals ...

As the Centers for Disease Control and Prevention (CDC) explains, bird flu is a disease caused by the influenza A virus. At the same time, recent CDC data shows that seasonal influenza A is rising ...

H5N1, an avian flu virus, has killed tens of thousands of marine mammals, and infiltrated American livestock for the first time. Scientists are working quickly to assess how it is evolving and how ...

Tiny genetic alterations could help the bird flu virus enter cells in the upper respiratory tract, the C.D.C. said. But there is no sign that mutations are widespread in nature.