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What is H1N1 influenza (formerly referred to as Swine Flu)?

April 26, 2017flu h1n1 Influenza referred swine

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What is H1N1 influenza (formerly referred to as Swine Flu)?

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H1N1 is an influenza (flu) virus first seen in the United States in April 2009. As health officials learn more about this flu virus, they continue to identify it more accurately. As a result, you may hear or see it called by different names, including “novel H1N1 influenza (flu) virus,” “H1N1 influenza (flu) virus” or “novel influenza A (H1N1) virus infection.” These are all describing this same, newly seen influenza virus in people.