Public health officials have been warning for some time that nothing about the flu is predictable. But here’s something that is: When it comes to a new strain of the flu like H1N1, which has already ...

The symptoms of pandemic H1N1 influenza of 2009 are essentially the same as the seasonal flu, although some have noted an increased frequency of gastrointestinal symptoms, including vomiting and ...

Nineteen-year-old U.S. Army Pvt. David Lewis set out from Fort Dix on a 50-mile hike with his unit on Feb. 5, 1976. On that bitter cold day, he collapsed and died. Autopsy specimens unexpectedly ...

Swine flu, scientifically known as the H1N1 virus, is making headlines again as cases surge in various parts of the country, ...

At least two human cases of the new so-called "dual mutant" strains of H1N1 influenza have been detected in U.S. patients, the Centers for Disease Control and Prevention said Wednesday, with genetic ...

GENEVA (Reuters) - The H1N1 flu virus is starting to infect older people, and pregnant women and the obese are at highest risk, the World Health Organization said on Friday. In a statement, the United ...