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FluView : 2013-2014 Influenza Season ; Week 2 ending January 11, 2014
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  • Description:
    Synopsis: During week 2 (January 5-11, 2014), influenza activity remained high in the United States.

    o Viral Surveillance: Of 10,841specimens tested and reported during week 2 by U.S. World Health Organization (WHO) and National Respiratory and Enteric Virus Surveillance System (NREVSS) collaborating laboratories, 2,721 (25.1%) 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-associated Pediatric Deaths:Ten influenza-associated pediatric deaths were reported.

    o Influenza-associated Hospitalizations: A cumulative rate for the season of 13.8 laboratory-confirmed influenza-associated hospitalizations per 100,000 population was reported.

    o Outpatient Illness Surveillance: The proportion of outpatient visits for influenza-like illness (ILI) was 3.6%, above the national baseline of 2.0%. All 10 regions reported ILI above region-specific baseline levels. Fourteen states experienced high ILI activity; 12 states experienced moderate ILI activity; eight states and New York City experienced low ILI activity; 16 states experienced minimal ILI activity, and the District of Columbia had insufficient data.

    o Geographic Spread of Influenza: The geographic spread of influenzain40stateswas reported as widespread; nine states and Guam reported regional influenza activity; the District of Columbia and Puerto Rico reported local influenza activity; one state reported sporadic influenza activity, and the U.S. Virgin Islands did not report.

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