Cambodia’s health ministry just reported another human case of H5N1 bird flu this year—this time, it’s a 5-year-old boy from ...

South Africa has reported the highly pathogenic H5N1 strain of avian influenza, or bird flu, on two poultry farms in the ...

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

Chinese scientists have found out how the H5N1 virus initially invades the mammary glands of dairy cattle and may have ...

Cambodia late last week reported its sixth case and fifth death from H5N1 avian flu this year, according to the country's ...

Some of the recent wild bird positives were sampled recently in a region where outbreaks were reported at Arizona layer farms ...

H5N1 was believed to spread primarily through direct contact with infected animals or their bodily fluids, but the new ...

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Experts urge U.S. to prepare for possible new pandemic as H5N1 bird flu outbreak spreads with dairy animal and human cases. Here's what to know.

The H5N1 avian influenza virus has infected birds and mammals around the world. As of June 2025, 70 people have been infected, and 1 person has died in the United States.

Because H5N1 is a virus specifically evolved to attack birds, it isn’t as good at infecting the cells of mammals — yet. But if you can count on one thing for viruses to do, it’s mutate.

Bird flu was probably circulating in dairy cows for at least four months before it was confirmed to be the highly pathogenic H5N1 virus, according to a new analysis of genomic data by scientists ...