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| Study Explains Immunity to H1N1 in Older People |
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| Medical News - General Medical News | |||
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Older people who have been infected with or vaccinated against seasonal flu may have a type of immunity produced by cells that protects them from the swine flu virus, U.S. researchers said on Wednesday. Source: Reuters Health Related MedlinePlus Topics: H1N1 Flu (Swine Flu), Seniors' Health Read more: MedlinePlus Health News
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