Wastewater in several Californian cities, including San Francisco and Los Angeles, recently tested positive for bird flu. But ...

There have been dozens of confirmed human cases of bird flu in the U.S. this year. Experts discuss the symptoms, risks and ...

H5N1 avian influenza, more commonly known as bird flu, has infected more than 100 million birds in the U.S. and almost 500 ...

A teenager in Canada is critically ill with the country's first human case of H5N1 bird flu. Health officials aren't sure how ...

Avian flu typically spreads between wild and domestic birds but can spread to other animals and people. There have now been ...

Viruses work by taking control of our cells and carefully reprogramming them into machines to make more viruses. Because of ...

The World Health Organization voiced alarm at the growing spread of H5N1 bird flu to new species, including humans, who face an ... variant is rarely fatal, does not spread easily and there ...

Rising H5N1 bird flu cases in the U.S. prompted the CDC to study the virus in ferrets, revealing it may have the potential to ...

Almost from the beginning of the spread of H5N1 bird flu among farms and ranches in the U.S. earlier this year, experts and ...

Dr. Todd Ellerin, chief of infectious diseases at South Shore Health, answers questions about the recent infection of a pig ...