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FluView : 2014-2015 Influenza Season ; Week 48 ending November 29, 2014
  • Published Date:
    December 5, 2014
  • Language:
    English
Filetype[PDF - 1.20 MB]


Details:
  • Corporate Authors:
    National Center for Immunization and Respiratory Diseases (U.S.). Influenza Division.
  • Description:
    Synopsis: During week 48 (November 23-29, 2014), influenza activity increased in the United States.

    o ViralSurveillance:Of13,398specimenstestedandreportedbyU.S.WorldHealth Organization (WHO) and National Respiratory and Enteric Virus Surveillance System (NREVSS) collaborating laboratories during week 48, 2,274 (17.0%) were positive for influenza.

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

    o Influenza-associatedPediatricDeaths:Noinfluenza-associatedpediatricdeathswere reported.

    o Influenza-associatedHospitalizations:Acumulativeratefortheseasonof1.8laboratory- confirmed influenza-associated hospitalizations per 100,000 population was reported.

    o OutpatientIllnessSurveillance:Theproportionofoutpatientvisitsforinfluenza-likeillness (ILI) was 2.6%, above the national baseline of 2.0%. Eight of 10 regions reported ILI at or above region-specific baseline levels. Puerto Rico and six states experienced high ILI activity; one state experienced moderate ILI activity; five states experienced low ILI activity; New York City and 38 states experienced minimal ILI activity; and the District of Columbia had insufficient data.

    o GeographicSpreadofInfluenza:ThegeographicspreadofinfluenzainPuertoRicoand six states was reported as widespread; 14 states reported regional activity; the U.S. Virgin Islands and 19 states reported local activity; the District of Columbia and 11 states reported sporadic activity; and Guam did not report.

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