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FluView : 2012-2013 Influenza Season ; Week 20 ending May 18, 2013
  • Published Date:
    5/24/13
  • Language:
    English
Filetype[PDF - 1.00 MB]


Details:
  • Corporate Authors:
    National Center for Immunization and Respiratory Diseases (U.S.). Influenza Division.
  • Description:
    Synopsis: During week 20 (May 12-18, 2013), influenza activity remained low in the United States.

    o Viral Surveillance: Of 2,104 specimens tested and reported by collaborating laboratories, 68 (3.2%) 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: Seven pediatric deaths werereported.

    o Influenza-Associated Hospitalizations: Acumulativerate for the season of 44.3 laboratory-confirmed influenza-associated hospitalizations per 100,000 population was reported. Of reported hospitalizations, about 50% were among adults 65 years and older.

    o Outpatient Illness Surveillance: The proportion of outpatient visits for influenza-like illness (ILI) was 0.9%. This is below the national baseline of 2.2%. All 10 regions reported ILI below region-specific baseline levels. Forty-nine states and New York City experienced minimal activity, and one state and the District of Columbia had insufficient data.

    o Geographic Spread of Influenza: Puerto Rico and one state reported local influenza activity; Guam and 31 states reported sporadic influenza activity; 18 states reported no influenza activity, and the District of Columbia and the U.S. Virgin Islands did not report.

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