The California duck farm's strain of H5N9 is different from those earlier cases because this time it is closely related to a ...

Read on to learn about the different types of flu. Flu, or influenza, is a contagious respiratory infection caused by various flu viruses. Symptoms include muscle aches and soreness, headache ...

First U.S. detection of virulent H5N9 strain, at a California duck farm, draws scrutiny as evidence of genetic reassortment ...

The first U.S. H5N9 outbreak has raised concerns as scientists warn of evolving bird flu risks—here's what you need to know about the symptoms.

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 ...