Influenza viruses are shifty entities. A seemingly ingenious and sneaky way for viruses to make these leaps is by swapping ...

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

H5N1 avian influenza has long been a concerning virus. Since its discovery in 1996 in waterfowl, bird flu has occasionally ...

Bird flu was nearly everywhere in the U.S.—in chickens, cows, pet cats and even humans. Cases have gone down, but experts ...

Scientists always knew a deadly virus was going to jump from animals to humans: COVID was not the first time it has happened, ...

Cambodia’s Ministry of Health recently confirmed the country’s twelfth human case of H5N1 avian influenza so far this year.

Bird flu continues to spread quickly through the U.S. farm system because that system is inherently a viral playground.

After an outbreak at a B.C. farm, Canada’s food inspection agency said nearly 400 surviving ostriches would be killed ...

New versions of the H5N1 virus are increasingly adept at spreading. Suggestions to either let it rip in poultry or vaccinate the birds could backfire.

Dead wild seabirds have been washed up on shorelines in Kerry, Clare and Galway during the past month, according to the ...