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FluView : 2012-2013 Influenza Season ; Week 7 ending February 16, 2013
  • Published Date:
    2/22/13
  • Language:
    English
Filetype[PDF - 971.47 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 7 (February 10 - 16, 2013), influenza activity remained elevated in the United States, but decreased in most areas.

    o Viral Surveillance: Of 8,144 specimens tested and reported by collaborating laboratories, 1,371 (16.8%) 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: Fourteen pediatric deaths were reported.

    o Influenza-Associated Hospitalizations: A cumulative rate for the season of 34.2 laboratory-confirmed influenza-associated hospitalizations per 100,000 population was reported. Of reported hospitalizations, more than 50% were among adults 65 years and older.

    o Outpatient Illness Surveillance: The proportion of outpatient visits for influenza-like illness (ILI) was 2.8%. This is above the national baseline of 2.2%. All 10 regions reported ILI at or above region-specific baseline levels. Three states experienced high ILI activity; 13 states and New York City experienced moderate activity; 11 states experienced low activity; 23 states experienced minimal activity, and the District of Columbia had insufficient data.

    o Geographic Spread of Influenza: Twenty-two states reported widespread influenza activity; Puerto Rico and 21 states reported regional influenza activity; the District of Columbia and 6 states reported local influenza activity; 1 state reported sporadic influenza activity; Guam reported no influenza activity, and the U.S. Virgin Islands did not report.

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