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

A seasonal flu virus suddenly mutated in the summer. It appears to evade some of our immunity, has kick-started a flu season ...

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

The CDC is preparing for the potential spread of H1N1 swine flu viruses in China that have “pandemic potential,” according to the American Hospital Association. The “G4” Eurasian avianlike H1N1 ...

Swine Influenza (swine flu) is a respiratory disease of pigs caused by type A influenza viruses that causes regular outbreaks in pigs. People do not normally get swine flu, but human infections can ...

A mutated strain of the flu is surging worldwide, sparking concerns about a severe flu season in the U.S. Here's what to ...

An unexpected mutation of the H3N2 influenza A virus is driving up case counts abroad, and experts are concerned it could ...

CARSON CITY ” State officials on Monday outlined aggressive efforts to deal with swine flu in the event the contagious virus, which has been detected in several other states, shows up in Nevada. While ...

Public health officials say a mutated strain of Influenza A H3N2 is spreading in the United States and other countries, ...

The U.S. flu season is starting slowly, and it's unclear if it will be as bad as last winter's , but some health experts are ...

H5N1 bird flu has infected growing numbers of people worldwide in recent years, but this week saw something new: the first ...