What you need to know about bird flu. Public health experts are closely watching avian influenza, which has affected chickens ...

NEW YORK (AP) — All live poultry markets in New York City and some of its suburbs were ordered Friday to close for a week after the detection of seven cases of avian flu, which has also hit farms ...

Nearly 119,000 birds have been culled at a farm in California after a bird flu called H5N9 was detected among the poultry ...

Experts stressed that the new strain did not itself appear to be an immediate human threat. But the rise of a new strain is troubling and points to the risk of a viral phenomenon known as ...

The Ohio Division of Wildlife says bird flu is presumed to have infected the state's wildlife. What, if anything, do you need to do in response?

The source of the SARS-CoV-2 virus, which causes COVID-19, remains elusive. With "low confidence," some federal agencies ...

In the study of infectious diseases, a critical and complex phenomenon is the transmission of viruses across different host species. Such events can lead to ...

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

One of the barriers currently preventing avian viruses from spreading to humans has to do with the way different flu viruses bind to their host. This happens when a flu virus’ haemagglutinin (HA) ...