As we get deeper into flu season, a new type of the influenza virus has been identified, the Centers for Disease Control and ...

The flu can also cause a general feeling of fatigue or malaise, Ray says, as well as gastrointestinal issues like diarrhea ...

Scientists have discovered that avian influenza viruses have a gene that makes them incredibly resistant to heat, rendering ...

This year's version of H3N2 has experts on alert. It's a mutated version, subclade K, that may weaken the vaccine's ...

Flu A circulates in humans and animals, while flu B is primarily considered a human disease, according to Dr. Russo.

Fever slows seasonal flu by blocking viral replication, but bird-flu strains resist heat. New research reveals why—and what ...

The country's first-ever H5N5 bird flu case has been confirmed in Washington state, where a resident is hospitalized with a ...

While it remains seasonal in poultry, the disease is spreading in dairy cows and infecting hundreds of other ...

The person, who had been hospitalized in King County since early November, died on Nov. 21, health officials said.

A Washington resident died of complications from an infection with a bird flu strain never before reported in humans, the ...