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

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

Bird flu fears have focused on the poultry and dairy industries and human health. But wild animals are threatened, too—at ...

The virus, which scientists call H5N1, has spread like wildfire around the globe in recent years, surprising and horrifying ...

Every year, billions of birds undertake intrepid journeys between temperate regions in North America and their tropical ...