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

Bird flu spreads to cows and humans in the U.S. Bird flu has circled the globe for decades, but the discovery last year that the deadly pathogen had jumped from a wild bird to a cow upped the stakes.

The CDC said Thursday it is updating its recommendations for testing, treatment and protection for workers who may be exposed ...

UPDATED: March 31, 2025 at 9:25 AM MDT Colorado is relatively prepared for the avian flu or other public health emergencies, according to an annual report card from the Trust for America’s Health.

For months, bird flu was seemingly everywhere in the U.S.: news headlines reported the highly pathogenic H5N1 avian influenza virus was rapidly sweeping through hundreds of herds of dairy cattle ...

In Colorado, 10 confirmed human cases of bird flu have been reported by the CDC since 2024. One human case was confirmed in the state in February of this year.

Scientists have known for more than a year that bird flu, H5N1, made the jump from wild birds and common poultry to cows and ...

Dairies say the USDA relief money helped them sustain operations as bird flu decimated milk production, but critics say the ...

More information: Felipe Peña-Mosca et al, The impact of highly pathogenic avian influenza H5N1 virus infection on dairy cows, Nature Communications (2025). DOI: 10.1038/s41467-025-61553-z ...

While bird flu has been around for decades, the discovery in 2024 that the deadly pathogen spread from a wild bird to a cow came as a surprise to virus watchers, according to news officials. In ...

The parasitic fly that attacks warm-blooded animals was eliminated from the United States in the 1960s, but it’s creeping ...

A highly pathogenic version of avian influenza virus, commonly referred to as bird flu, was detected in wild birds in the United States in early 2022. In spring 2024, multiple ...