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FluView : 2012-2013 Influenza Season ; Week 8 ending February 23, 2013
  • Published Date:
    3/1/13
  • Language:
    English
Filetype[PDF - 994.06 KB]


Details:
  • 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 8 (February 17 - 23, 2013), influenza activity remained elevated in the United States, but decreased in most areas.

    o Viral Surveillance: Of 7,609 specimens tested and reported by collaborating laboratories, 1,288 (16.9%) 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: Three pediatric deaths were reported.

    o Influenza-Associated Hospitalizations: A cumulative rate for the season of 36.7 laboratory-confirmed influenza-associated hospitalizations per 100,000 population was reported. Of reported hospitalizations, over 51% were among adults 65 years and older.

    o Outpatient Illness Surveillance: The proportion of outpatient visits for influenza-like illness (ILI) was 2.7%. This is above the national baseline of 2.2%. Eight of 10 regions reported ILI at or above region-specific baseline levels. Twelve states and New York City experienced moderate activity; 15 states experienced low activity, and 23 states and the District of Columbia experienced minimal activity.

    o Geographic Spread of Influenza: Twelve states reported widespread influenza activity; Puerto Rico and 28 states reported regional influenza activity; 7 states and the District of Columbia reported local influenza activity; 3 states reported sporadic influenza activity; Guam reported no influenza activity, and the U.S. Virgin Islands did not report.

    Date from document properties.

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