The largest population of elephant seals in the world suffered massive mortality in 2023 from H5N1 bird flu infection. Animal experts fear for California's elephant seals.

After the H5N1 virus hit the remote island of South Georgia in 2023, more than 50,000 breeding females may have disappeared.

Avian influenza H5N1 infection in humans has spread to seven U.S. states, growing from 46 cases last week to 52 cases this week.

The USDA said that raw or unpasteurized milk from dairy farms and processors must be tested on request starting on December ...

Migrating wild birds are spreading the virus to domesticated flocks, increasing the risk of eventually seeing a human ...

It was a quiet summer for bird flu: Egg prices fell a bit, fewer sick poultry flocks were culled on farms, and officials took a breath. “It was lovely,” said Shauna Voss, the assistant director of the ...

The CDC says bird flu is a disease caused by avian influenza A viruses (H5N1) that usually spread between birds, not people. It occurs naturally among wild aquatic birds. It's very contagious among ...

The CDC says bird flu is a disease caused by avian influenza A viruses (H5N1) that usually spread between birds, not people. It occurs naturally among wild aquatic birds. It's very contagious among ...