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 ...

The WHO declared H1N1 a pandemic back in June, at a time when the outbreak was still early. This sent a wave of fear around the world even though an examination of the virus itself showed that it ...

AUSTIN (KXAN) – Researchers in China have identified a new strain of swine flu that has “pandemic potential.” It has been more than a decade since the swine flu, known as the virus H1N1, last caused a ...

* WHO chief Chan says will take 6-12 months to conquer H1N1 * World not ready to combat H5N1 bird flu pandemic, she says (Recasts after news conference with fresh quotes) By Stephanie Nebehay GENEVA, ...

The World Health Organization (WHO) has raised the pandemic warning level from phase 5 to 6, officially declaring the H1N1 influenza as a pandemic. WHO has reported that 74 countries have 27,737 ...

A new study has identified an influenza virus circulating in pigs that shows multiple traits associated with pandemic potential. Known as H1N2, the virus belongs to a lineage of flu viruses that ...

Add Yahoo as a preferred source to see more of our stories on Google. Vaccine research quickly picked up to try to prevent a possible flu pandemic in 1976. AP Photo Nineteen-year-old U.S. Army Pvt.