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FluView : 2015-2016 Influenza Season ; Week 15 ending April 16, 2016
  • Published Date:
    April 22, 2016
  • Language:
    English
Filetype[PDF - 1.30 MB]


Details:
  • Series:
    FluView : 2015-2016 Influenza Season ; Week 15
  • Document Type:
  • Description:
    All data are preliminary and may change as more reports are received.

    Synopsis: During week 15 (April 10-16, 2016), influenza activity decreased in the United States.

    • Viral Surveillance: The most frequently identified influenza virus type reported by public health laboratories during week 15 was influenza A, with influenza A (H1N1)pdm09 viruses predominating. The percentage of respiratory specimens testing positive for influenza in clinical laboratories decreased.

    • Pneumonia and Influenza Mortality: The proportion of deaths attributed to pneumonia and influenza (P&I) was below the system-specific epidemic threshold in the NCHS Mortality Surveillance System and above the system-specific epidemic threshold in the 122 Cities Mortality Reporting System.

    • Influenza-associated Pediatric Deaths: Six influenza-associated pediatric deaths were reported.

    • Influenza-associated Hospitalizations: A cumulative rate for the season of 28.4 laboratory-confirmed influenza-associated hospitalizations per 100,000 population was reported.

    • Outpatient Illness Surveillance: The proportion of outpatient visits for influenza-like illness (ILI) was 2.1%, which is at the national baseline of 2.1%. Five of 10 regions reported ILI at or above region-specific baseline levels. One state experienced high ILI activity; Puerto Rico and one state experienced moderate ILI activity; 11 states experienced low ILI activity; New York City and 37 states experienced minimal ILI activity; and the District of Columbia had insufficient data.

    • Geographic Spread of Influenza: The geographic spread of influenza in Puerto Rico and 14 states was reported as widespread; Guam and 19 states reported regional activity; the District of Columbia and 13 states reported local activity; and the U.S. Virgin Islands and four states reported sporadic activity.

    External_F1615.pdf

  • Supporting Files:
    No Additional Files