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FluView : 2014-2015 Influenza Season ; Week 51 ending December 20, 2014
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December 29, 2014
[PDF-1.22 MB]
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Journal Article:FluView
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Description:Synopsis: During week 51 (December 14-20, 2014), influenza activity continued to increase in the United States.
o ViralSurveillance:Of21,858specimenstestedandreportedbyU.S.WorldHealth Organization (WHO) and National Respiratory and Enteric Virus Surveillance System (NREVSS) collaborating laboratories during week 51, 6,152 (28.1%) were positive for influenza.
o PneumoniaandInfluenzaMortality:Theproportionofdeathsattributedtopneumoniaand influenza (P&I) was at the epidemic threshold.
o Influenza-associatedPediatricDeaths:Fourinfluenza-associatedpediatricdeathswere reported.
o Influenza-associatedHospitalizations:Acumulativeratefortheseasonof9.7laboratory- confirmed influenza-associated hospitalizations per 100,000 population was reported.
o OutpatientIllnessSurveillance:Theproportionofoutpatientvisitsforinfluenza-likeillness (ILI) was 5.5%, above the national baseline of 2.0%. All 10 regions reported ILI at or above region-specific baseline levels. Puerto Rico and 22 states experienced high ILI activity; six states experienced moderate ILI activity; New York City and eight states experienced low ILI activity; 14 states experienced minimal ILI activity; and the District of Columbia had insufficient data.
o Geographic Spread of Influenza: The geographic spread of influenza in 36 states was reported as widespread; Guam, Puerto Rico, and 10 states reported regional activity; the District of Columbia, the U.S. Virgin Islands, and two states reported local activity; and two states reported sporadic activity.
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