Prior exposure to one strain of influenza virus may weaken children's ability to mount an effective antibody response against their subsequent exposure to a different flu strain, according to a study ...

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 ...

A long-running debate in vaccine design revolves around whether a vaccine should be optimized to prevent the virus from ...

Swine flu, scientifically known as the H1N1 virus, is making headlines again as cases surge in various parts of the country, particularly in the national capital. With symptoms resembling those of ...

Prior exposure to one strain of influenza virus may weaken children's ability to mount an effective antibody response against their subsequent exposure to a different flu strain, according to a study ...

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 ...