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 ...

As more and more people receive the H1N1 shot, an earlier vaccine is casting a mysterious shadow over the attempt to immunize 200 million people in the next few months. A vaccine made in 1976 in ...

If the fast spread of swine flu suggests the world is small, the global response to the epidemic reminds us that in many ways it’s still light years apart. Swine flu has been making headlines in the ...

Donald S. Burke does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

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 ...