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FluView : 2013-2014 Influenza Season ; Week 41 ending October 12, 2013
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  • Description:
    Synopsis: During week 41 (Oc to ber 6-12, 2013), influenza activity remained low in the United States.

    o Viral Surveillance: Of 3,534 specimens tested and reported by U.S. WorldHealth Organization (WHO) and National Respira to ry and Enteric Virus Surveillance System (NREVSS) collaborating laboratories during week 41, 166 (4.7%) were positive for influenza.

    o Novel Influenza A Virus:One human infection with a novel influenza A virus was reported. o Pneumonia and Influenza Mortality: The proportion of deaths attributed to pneumonia and

    influenza (P&I) was below the epidemic threshold.

    o Influenza-associated Pediatric Deaths : No influenza-associated pediatric deaths were


    o Outpatient Illness Surveillance: The proportion of outpatient visits for influenza-like illness

    (ILI) was 1.1%, below the national baseline of 2.0%. All 10 regions reported ILI below region-specific baseline levels. Two states experienced low ILI activity, 48 states and New York City experienced minimal ILI activity and the District of Columbia had insufficient data.

    o Geographic Spread of Influenza: The geographic spread of influenza in Puerto Rico was reported as regional; 3 states reported local influenza activity; Guam, the District of Columbia, the U.S. Virgin Islands, and 24 states reported sporadic influenza activity; 22 states reported no influenza activity, and one state did not report.

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