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FluView : 2013-2014 Influenza Season ; Week 16 ending April 19, 2014
  • Published Date:
    April 25, 2014
  • Language:
    English
Filetype[PDF-1.31 MB]


Details:
  • Corporate Authors:
    National Center for Immunization and Respiratory Diseases (U.S.). Influenza Division.
  • Description:
    Synopsis: During week 16 (April 13-19, 2014), influenza activity continued to decrease in the United States.

    o ViralSurveillance:Of5,061specimenstestedandreportedduringweek16byU.S.World Health Organization (WHO) and National Respiratory and Enteric Virus Surveillance System (NREVSS) collaborating laboratories, 606 (12.0%) were positive for influenza.

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

    o Influenza-associatedPediatricDeaths:Threeinfluenza-associatedpediatricdeathswere reported.

    o Influenza-associatedHospitalizations:Aseason-cumulativerateof33.9laboratory- confirmed influenza-associated hospitalizations per 100,000 population was reported.

    o OutpatientIllnessSurveillance:Theproportionofoutpatientvisitsforinfluenza-likeillness (ILI) was 1.4%, which is below the national baseline of 2.0%. Two of 10 regions reported ILI at or above region-specific baseline levels. One state experienced moderate ILI activity; four states and New York City experienced low ILI activity; 44 states experienced minimal ILI activity, and the District of Columbia and one state had insufficient data.

    o GeographicSpreadofInfluenza:Thegeographicspreadofinfluenzainfivestatesand Guam was reported as widespread; three states reported regional influenza activity; Puerto Rico and 13 states reported local influenza activity; the District of Columbia and 25 states reported sporadic influenza activity, and the U.S. Virgin Islands and four states reported no influenza activity.

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