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FluView: 2012–2013 Influenza Season: Week 4 ending January 26, 2013

Public Domain
File Language:
English


Details

  • Journal Article:
    FluView
  • 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 4 (January 20-26), influenza activity remained elevated in the United States, but decreased in some areas.

    o Viral Surveillance: Of 10,581 specimens tested and reported by collaborating laboratories, 2,701 (25.5%) 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: Eight pediatric deaths were reported.

    o Influenza-Associated Hospitalizations: A cumulative rate for the season of 25.9 laboratory-confirmed influenza-associated hospitalizations per 100,000 population was reported. Of all 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 4.2%; this is above the national baseline of 2.2%. All 10 regions reported ILI above region-specific baseline levels. Twenty-four states and New York City experienced high ILI activity; the District of Columbia and 13 states experienced moderate activity; 4 states experienced low activity; and 9 states experienced minimal activity.

    o Geographic Spread of Influenza: Forty-two states reported widespread geographic influenza activity; 7 states reported regional activity; the District of Columbia and one state reported local activity; Guam reported sporadic influenza activity, and Puerto Rico and the U.S. Virgin Islands did not report.

    Date from document properties.

  • Subjects:
  • Series:
    FluView
  • Document Type:
    Text
  • Genre:
  • Place as Subject:
    United States
  • Pages in Document:
    12 numbered pages
  • Volume:
    2012
  • Issue:
    4
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:8c4dd820b2a75c3071eec17559105d148d2c1d622523424f05b2249618162cea139a49989c9266f8bfe40453804ecea6e282028bd91e6e2a3650f02bede0d834
  • Download URL:
  • File Type:
    Filetype[PDF - 971.26 KB ]
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