GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY
Editorial use only.
In November 2009 swine flu vaccinations were offered free of charge to the public. Shown here is a flu clinic organized by the Orange County Health Care Agency in Rancho Santa Margarita, California on November 7, 2009. Short supply of the vaccine resulted in long lines, with wait times of several hours being common.
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