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FluView : 2012-2013 Influenza Season ; Week 41 ending October 13, 2012
  • Published Date:
    October 19 2012
  • Language:
    English
Filetype[PDF - 413.72 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 41 (October 7-13, 2012), influenza activity remained low in the United States.

    o Viral Surveillance: Of 3,285 specimens tested and reported by U.S. World Health Organization (WHO) and National Respiratory and Enteric Virus Surveillance System (NREVSS) collaborating laboratories during week 41, 129 (3.9%) were positive for influenza.

    o Pneumonia and Influenza Mortality: The proportion of deaths attributed to pneumonia and influenza (P&I) was at the epidemic threshold.

    o Influenza-associated Pediatric Deaths: One influenza-associated pediatric death was reported and was associated with an influenza A virus for which the subtype was not determined.

    o Outpatient Illness Surveillance: The proportion of outpatient visits for influenza-like illness (ILI) was 1.1%, which is below the national baseline of 2.2%. All 10 regions reported ILI below region-specific baseline levels. Forty-eight states and New York City experienced minimal ILI activity and the District of Columbia and two states had insufficient data.

    o Geographic Spread of Influenza: The geographic spread of influenza in one state (Iowa) was reported as local; the District of Columbia and 32 states reported sporadic activity; Guam and 16 states reported no influenza activity, and Puerto Rico, the U.S. Virgin Islands, and one state did not report.

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