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FluView: 2012–2013 Influenza Season: Week 51 ending December 22, 2012

Public Domain
File Language:
English


Details

  • Journal Article:
    FluView
  • Corporate Authors:
    National Center for Immunization and Respiratory Diseases (U.S.). Influenza Division.
  • Description:
    All data are preliminary and may change as more reports are received.

    Synopsis: During week 51 (December 16-22), influenza activity increased in the U.S.

    o Viral Surveillance: Of 6,234 specimens tested and reported by U.S. World Health Organization (WHO) and National Respiratory and Enteric Virus Surveillance System (NREVSS) collaborating laboratories in week 51, 1,846 (29.6%) were positive for influenza.

    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: Eight influenza-associated pediatric deaths were reported. Three were associated with influenza B viruses, 3 were associated with influenza A (H3) viruses, and 2 were associated with influenza A viruses for which the subtype was not determined.

    o Outpatient Illness Surveillance: The proportion of outpatient visits for influenza-like illness (ILI) was 4.2%; above the national baseline of 2.2%. Nine of 10 regions reported ILI above region-specific baseline levels. New York City and 16 states experienced high ILI activity; 8 states experienced moderate ILI activity; 10 states experienced low ILI activity; 14 states experienced minimal ILI activity, and the District of Columbia and 2 states had insufficient data.

    o Geographic Spread of Influenza: Thirty-one states reported widespread geographic influenza activity; 14 states reported regional activity; the District of Columbia and 3 states reported local activity; 2 states reported sporadic activity; Guam reported no influenza activity, and Puerto Rico and the U.S. Virgin Islands did not report.

    Date from document properties.

  • Subjects:
  • Series:
    FluView
  • Document Type:
    Text
  • Genre:
  • Place as Subject:
    United States
  • Pages in Document:
    12 numbered pages
  • Volume:
    2013
  • Issue:
    51
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:79d2fd59b9184e5896a29e3db4a23cad435193a7ebd597f30dcacc31abc9fcf06991c399d30a98d6877fc40672c3224f5d98056feb6ab758c832ec2fe90a8f91
  • Download URL:
  • File Type:
    Filetype[PDF - 918.98 KB ]
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