FluView : 2011-2012 Influenza Season ; Week 14 ending April 7, 2012
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  • Journal Article:
    FluView
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  • Description:
    All data are preliminary and may change as more reports are received.

    Synopsis: During week 14 (April 1-7, 2012), influenza activity was elevated in some areas of the United States, but declined nationally and in most regions.

    • U.S. Virologic Surveillance: Of the 3,607 specimens tested by U.S. World Health

    • Organization (WHO) and National Respiratory and Enteric Virus Surveillance System (NREVSS) collaborating laboratories and reported to CDC/Influenza Division, 756 (21.0%) were positive for influenza.

    • Novel Influenza A Virus: One human infection with a novel influenza A virus was identified.

    • Pneumonia and Influenza (P&I) Mortality Surveillance: The proportion of deaths

    • attributed to P&I was below the epidemic threshold.

    • Influenza-associated Pediatric Mortality: No influenza-associated pediatric deaths were reported.

    • Outpatient Illness Surveillance: The proportion of outpatient visits for influenza-like illness (ILI) was 1.5%, which is below the national baseline of 2.4%. Region 10 reported ILI above its region-specific baseline level. One state experienced moderate ILI activity, 1 state experienced low ILI activity; New York City and 48 states experienced minimal ILI activity, and the District of Columbia had insufficient data to calculate ILI activity.

    • Geographic Spread of Influenza: Ten states reported widespread geographic activity; 9 states reported regional influenza activity; 20 states reported local activity; the District of Columbia, Puerto Rico, and 11 states reported sporadic activity, and Guam and the U.S. Virgin Islands reported no influenza activity.

    External_F1214.pdf

    Publication date from document properties.

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  • Pages in Document:
    13 numbered pages
  • Volume:
    2012
  • Issue:
    14
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