Previous flu infections can reduce the severity of H1N1 (News-Medical-Net)

Researchers at the La Jolla Institute for Allergy & Immunology have found that previous influenza infections may provide at least some level of immunity to the H1N1 “swine” flu. “The question we asked was, “Is the swine flu more like the seasonal flu or like a totally new strain of influenza where there would be no immunity?,” said Alessandro Sette, Ph.D., an internationally recognized vaccine …

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Previous flu infections can reduce the severity of H1N1 (News-Medical-Net)