The concerning bird flu outbreak that has spread to four humans so far as it expands quickly in the U.S. has jumped to dozens of species, infecting mammals in at least 31 states. Among those ...

Bird flu, a highly contagious form of avian influenza, has demonstrated worrying zoonotic spread in recent weeks. The virus is spreading quickly throughout the United States, affecting a few human ...

In the U.S., the most recent wave of bird flu has struck in 17 mammals and more than 160 birds. It’s the broadest outbreak of H5N1 since it surfaced as a concern in China in 1996.

Four new cases of bird flu were detected in farmworkers in Washington state this week. Human infections have cropping in six states as the virus spreads among farm ... U.S. tally to at least 31.

As bird flu cases inundate more poultry and dairy farms, ... As bird flu spreads, feds might undercut states by firing scientists, ... “the more chances it has to adapt to mammals.” All 50 states.

Bird flu has spread to over 1,000 dairy herds across the country. It has also jumped to dozens of other mammals — a rapid and unprecedented spread, infectious disease physician Khan said.

Since 2021, H5N1 has been found in at least 47 states. It’s circulating among wild birds, cropping up in wild mammals, and, crucially, bouncing between mink. That last development is what really ...

More than 100 federal scientists who track bird flu, including vaccine and food safety experts, have been laid off. This comes as the deadly pathogen rips through dairy herds and poultry flocks.

Researchers around the world are growing more uneasy with the spread of highly pathogenic avian influenza (H5N1) in US dairy cows as the virus continues to make its way into new herds and states.