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H3N2v, USA: CDC Update (June 28 2013): 4 Cases Confirmed in Indiana

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  • H3N2v, USA: CDC Update (June 28 2013): 4 Cases Confirmed in Indiana

    [Source: US Centers for Disease Control and Prevention, FluView, full page: (LINK). Extract.]
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    Novel Influenza A Viruses:

    Four human infections with novel influenza A viruses were reported by Indiana.

    The four persons were infected with an influenza A (H3N2) variant (H3N2v) virus.

    One virus sample has been fully characterized by CDC and is 99% similar to H3N2v viruses identified in the 309 human infections that occurred in the United States in 2012.

    None of the four persons were hospitalized.

    At this time no ongoing human-to-human transmission has been identified and all four cases have reported close contact with swine in the week prior to illness onset.

    Public health and agriculture officials are investigating the extent of disease among humans and swine, and additional cases may be identified as the investigation continues.

    Because of reporting schedules, state totals posted by CDC may not always be consistent with those reported by state health departments. If there is a discrepancy between state and CDC case counts, data from the state health department should be used as the most accurate number.

    Early identification and investigation of human infections with novel influenza A viruses is critical in order to evaluate the extent of the outbreak and possible human-to-human transmission.

    Additional information on influenza in swine, variant influenza infection in humans, and strategies to interact safely with livestock can be found at http://www.cdc.gov/flu/swineflu/h3n2v-cases.htm.

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