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FluView : 2013-2014 Influenza Season ; Week 5 ending February 1, 2014
  • Published Date:
    February 7, 2014
  • Language:
    English
Filetype[PDF - 1.00 MB]


Details:
  • Corporate Authors:
    National Center for Immunization and Respiratory Diseases (U.S.). Influenza Division.
  • Description:
    Synopsis: During week 5 (January 26-February 1, 2014), influenza activity remained high in the United States.

    o Viral Surveillance: Of 8,282 specimens tested and reported during week 5 by U.S. World Health Organization (WHO) and National Respiratory and Enteric Virus Surveillance System (NREVSS) collaborating laboratories, 1,626 (19.6%) were positive for influenza.

    o Pneumonia and Influenza Mortality:The proportion of deaths attributed to pneumonia and influenza (P&I) was above the epidemic threshold.

    o Influenza-associatedPediatricDeaths:Threeinfluenza-associatedpediatricdeathswere reported.

    o Influenza-associated Hospitalizations:A season-cumulative rate of 22.5laboratory- confirmed influenza-associated hospitalizations per 100,000 population was reported.

    o Outpatient Illness Surveillance:The proportion of out patient visits for influenza-likeillness (ILI) was 3.2%, above the national baseline of 2.0%. All 10 regions reported ILI above region-specific baseline levels. Seven states experienced high ILI activity; 12 states experienced moderate ILI activity; 14 states and New York City experienced low ILI activity; 17 states experienced minimal ILI activity, and the District of Columbia had insufficient data.

    o Geographic Spread of Influenza:The geographic spread of influenza in 29 states was reported as widespread; 19 states reported regional influenza activity; the District of Columbia and one state reported local influenza activity; Guam, Puerto Rico, and one state reported sporadic influenza activity, and the U.S. Virgin Islands reported no influenza activity.

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