Digital Issues

Influenza viruses like bird flu can mix and match their genomes, and this has played a role in at least three of the last four flu pandemics

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

Bird flu fears have focused on the poultry and dairy industries and human health. But wild animals are threatened, too—at scales no one fully understands

Bird flu was nearly everywhere in the U.S.—in chickens, cows, pet cats and even humans. Cases have gone down, but experts warn that it hasn’t disappeared

As bird flu outbreaks continue to affect animals, experts answer questions about keeping pets and their owners healthy

Eggs can carry nasty viruses and bacteria. Here’s how to store and eat them safely