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FluView : 2014-2015 Influenza Season ; Week 8 ending February 28, 2015
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  • Description:
    Synopsis: During week 8 (February 22-28, 2015), influenza activity continued to decrease, but remained elevated in the United States.

    o ViralSurveillance:Of16,821specimenstestedandreportedbyU.S.WorldHealth Organization (WHO) and National Respiratory and Enteric Virus Surveillance System (NREVSS) collaborating laboratories during week 8, 1,834 (10.9%) were positive for influenza.

    o PneumoniaandInfluenzaMortality:Theproportionofdeathsattributedtopneumoniaand influenza (P&I) was at the epidemic threshold.

    o Influenza-associatedPediatricDeaths:Sixinfluenza-associatedpediatricdeathswere reported, including one influenza-associated pediatric death that occurred during the 2013- 2014 season.

    o Influenza-associatedHospitalizations:Acumulativeratefortheseasonof53.5 laboratory-confirmed influenza-associated hospitalizations per 100,000 population was reported.

    o OutpatientIllnessSurveillance:Theproportionofoutpatientvisitsforinfluenza-likeillness (ILI) was 2.5%, above the national baseline of 2.0%. Seven regions reported ILI at or above region-specific baseline levels. Puerto Rico and six states experienced high ILI activity; four states experienced moderate ILI activity; 10 states experienced low ILI activity; New York City and 30 states experienced minimal ILI activity; and the District of Columbia had insufficient data.

    o GeographicSpreadofInfluenza:ThegeographicspreadofinfluenzainGuamand12 states was reported as widespread; Puerto Rico, the U.S. Virgin Islands, and 30 states reported regional activity; the District of Columbia and six states reported local activity; and two states reported sporadic activity.

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