The progression of the species-jumping disease has been unprecedented, including the first-ever U.S. cases of infections in ...

A rapidly-spreading H5N1 avian influenza, otherwise known as bird flu, has been devastating bird flocks and showing signs of spreading to other mammals.

Between 500 and 1,000 suspected cases of H5N1, also called avian flu, have been reported in Massachusetts birds. Sharing ...

While the H5N1 bird flu keep spreading, the first reported H5N9 outbreak in the United States has been identified on a duck ...

Experts say our cities have a valuable tool that can help us keep better tabs on the virus: sewage. While wastewater already ...

Are eggs safe to eat amid the current avian flu outbreak? Have people in the U.S. contracted bird flu? We VERIFY the answers to common questions.

The German government plans to send border management experts to the Rafah crossing between Egypt and the Gaza Strip, ...

Learn more about how a vaccine could help prevent the spread of the avian flu virus but may also cause the virus to evolve ...

"The Chinese poultry lineage may have experienced more vaccine-driven selection compared to other lineages," the researchers wrote.

veterinary researchers identified the highly pathogenic H5N1 bird flu virus as the culprit. Long listed among pathogens with pandemic potential, the bird flu’s unprecedented spread among cows ...

Influenza A (H5N1) and influenza A (H7N9) are the most common bird flu subtypes that have spread to humans in the past. The country's recent bird flu cases were linked to influenza A (H5N1).