2009 Flu Pandemic in the United States by State
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2009 Flu Pandemic in the United States by State

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The United States experienced the beginnings of a pandemic of a novel strain of the Influenza A/H1N1 virus, commonly referred to as "swine flu", in the spring of 2009. The earliest reported cases in the US began appearing in late March 2009 in California,then spreading to infect people in Texas, New York, and other states by mid-April.Early cases were associated with recent travel to Mexico, many were students who had traveled to Mexico for Spring Break.This spread continued across the country's population and by the end of May there were approximately 0 confirmed cases throughout all 50 state...