Avian influenza, commonly called “bird flu,” is a viral infection that spreads in birds, cows and other animals.

As cases of bird flu continue to climb among wild birds, poultry and cattle in the U.S., the virus poses an increasing threat to human health. A total of 67 human cases of the H5N1 virus have been ...

A new report suggests that more Americans may be walking around with bird flu − and not even know it. Researchers from the Centers for Disease Control and Prevention randomly tested 150 veterinarians ...

A new study published Thursday by the Centers for Disease Control and Prevention shows that bird flu has silently spread from ...

Three veterinarians who work with cows have tested positive for prior infections of H5 bird flu, according to a study ...

The report is the latest evidence that the outbreak in dairy herds is spreading undetected in cows, and the spillover into ...

Another spillover of the H5N1 bird flu virus from wild birds to dairy cattle appears to have occurred, this time in Arizona.

After a different strain of bird flu was recently found in cattle for the first time, experts reveal what this means in our fight against the virus.

Blood testing of large-animal veterinarians suggests that H5N1 bird flu has spread more widely than US surveillance of the virus is capturing, according to a new study by federal and state disease ...

Parks Canada says it has found a confirmed case of bird flu in a Canada goose at Rouge National Urban Park and suspects five more. Here’s how you can protect yourself and your pets.

While a pandemic is not inevitable, the spread of the bird flu virus, also known as H5N1, has surpassed worrisome milestones ...