H5N1 is a specific strain of influenza A virus, also known as bird flu. The avian flu is a highly contagious respiratory disease that primarily affects birds, but can also infect other animals ...

A new study published in Nature Microbiology has uncovered significant genetic and antigenic diversity among H9N2 avian ...

Shah: This is a highly pathogenic avian influenza, H5N1—what people are commonly referring to as the bird flu. Influenza, in general, small changes in the genetic structure of the virus can lead ...

The avian influenza virus needs to mutate to cross the species barrier and to infect and replicate within mammalian cells. Scientists have now deciphered the structure of the avian influenza virus ...

In recent years, public health measures, surveillance, and vaccination have helped bring about significant progress in reducing the impact of seasonal flu epidemics, caused by human influenza viruses ...

The bird flu virus remains a wild card that continues to threaten U.S. poultry and egg supplies while upping the ante with risk to human health.