FluView: 2011-2012 Influenza Season: Week 50 ending December 17, 2011

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 50 (December 11-17, 2011), influenza activity remained low in the United States.
  
  • U.S. Virologic Surveillance: Of the 2,993 specimens tested by U.S. World Health
  
  • Organization (WHO) and National Respiratory and Enteric Virus Surveillance System (NREVSS) collaborating laboratories and reported to CDC/Influenza Division, 64 (2.1%) were positive for influenza.
  
  • Novel influenza A Virus: Two human infections with novel influenza A virus were reported.
  
  • Pneumonia and Influenza (P&I) Mortality Surveillance: The proportion of deaths
  
  • attributed to P&I was below the epidemic threshold.
  
  • Influenza-associated Pediatric Mortality: No influenza-associated pediatric deaths were reported.
  
  • Outpatient Illness Surveillance: The proportion of outpatient visits for influenza-like illness (ILI) was 1.4%, which is below the national baseline of 2.4%. All 10 regions reported ILI below region-specific baseline levels. One state experienced moderate ILI activity, New York City experienced low ILI activity, 49 states experienced minimal ILI activity, and the District of Columbia had insufficient data.
  
  • Geographic Spread of Influenza: The geographic spread of influenza in two states was reported as local; Guam, Puerto Rico, and 37 states reported sporadic activity, and the District of Columbia, the U.S. Virgin Islands, and 11 states reported no influenza activity.
  
  External_F1150.pdf
  
  
• Subjects:
  Disease Outbreaks Influenza, Human/epidemiology Influenza A Virus, H2N2 Subtype Public Health Surveillance
• Series:
  FluView
• Document Type:
  Text
• Genre:
  Newsletter ; Statistics
• Place as Subject:
  United States
• Pages in Document:
  11 numbered pages
• Volume:
  2010
• Issue:
  50
• Collection(s):
  Stephen B. Thacker CDC Library
• Main Document Checksum:
  urn:sha-512:96bea8b51380f67d6f9095b4e226f6a85f7df9a85e25b11d3ff05aa152e85e6854b1172979ac9c294b4b3a58473f2a75c040b69e2b7bdfccff12a4945d03bd01
• Download URL:
  https://stacks.cdc.gov/view/cdc/37503/cdc_37503_DS1.pdf
• File Type:
  [PDF - 480.68 KB ]