H1N1 Answers - Mayo Clinic

501 views · Published 30 October 2009 · 6:05 · Indexed 20 September 2026

Channel: Mayo Clinic · 2009 · Science & Technology

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William Marshall, M.D., a Mayo Clinic infectious diseases specialist, answers questions about the safety and efficacy of H1N1 vaccination, why it's important, and who should get vaccinated.

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