Highly pathogenic avian influenza A(H5N1) virus was identified in 2 symptomatic indoor domestic cats from homes of Michigan dairy workers.

Recommendations on the strain composition of influenza virus vaccines for the 2025-2026 US season have been issued by FDA.

Recent viral mutations have shown avian influenza’s adaptability to mammalian hosts, prompting infectious disease, animal ...

The detection of bird flu in a sheep is another sign that the H5N1 virus is adapting to hop to new hosts ...

The H5N1 virus was detected in a single animal in Yorkshire, the British government said on Monday. It added that the risk to humans remained very low.

H5N1 influenza is evolving rapidly, weakening the effectiveness of existing antibodies and increasing its potential threat to ...

Backyard Poultry Face Bird Flu Risk When Migrating Mallards Stop to Rest Feb. 24, 2025 — Knowing where, when and for how long mallard ducks -- natural carriers of avian influenza -- stop and ...

Bird flu “is adapting to mammals, and it continues to show new tricks,” Nelson tells The Verge. The virus is spreading widely ...

Bird flu cases are rising rapidly in the U.S. and around the world. A new study traces how the disease spread over the last ...

Backyard Poultry Face Bird Flu Risk When Migrating Mallards Stop to Rest Feb. 24, 2025 — Knowing where, when and for how long mallard ducks -- natural carriers of avian influenza -- stop and ...

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Some of the issues: In March 2017, an outbreak of highly pathogenic avian influenza (HPAI) H7N9 virus was detected in two commercial chicken breeder flocks in the United States. This North ...