This Week in Swine Flu: Vaccines Approved!, Masks vs. Hand-Washing

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By Eliza Strickland
Sep 17, 2009 11:49 PMNov 20, 2019 12:49 AM
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The big news in swine flu this week: Vaccines from four drugmakers have been approved for use in the United States, and with the companies' production lines cranking there will be plenty to go around. Clinical trials have also shown that a single shot is enough to create a strong immune response, which means stockpiles will go twice as far as they would have if two shots were necessary. Said U.S. Health Secretary Kathleen Sebelius:

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