FluView : 2014-2015 Influenza Season ; Week 49 ending December 9, 2014
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FluView : 2014-2015 Influenza Season ; Week 49 ending December 9, 2014

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    • Description:
      Synopsis: During week 49 (November 30-December 6, 2014), influenza activity continued to increase in the United States.

      o ViralSurveillance:Of16,093specimenstestedandreportedbyU.S.WorldHealth Organization (WHO) and National Respiratory and Enteric Virus Surveillance System (NREVSS) collaborating laboratories during week 49, 3,415 (21.2%) were positive for influenza.

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

      o Influenza-associatedPediatricDeaths:Twoinfluenza-associatedpediatricdeathswere reported.

      o Influenza-associatedHospitalizations:Acumulativeratefortheseasonof3.8laboratory- 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%. Eight of 10 regions reported ILI at or above region-specific baseline levels. Puerto Rico and six states experienced high ILI activity; two states experienced moderate ILI activity; seven states experienced low ILI activity; New York City and 35 states experienced minimal ILI activity; and the District of Columbia had insufficient data.

      o Geographic Spread of Influenza: The geographic spread of influenza in 14 states was reported as widespread; Guam, Puerto Rico and 25 states reported regional activity; the U.S. Virgin Islands and seven states reported local activity; and the District of Columbia and four states reported sporadic activity.

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