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FluView: 2011-2012 Influenza Season: Week 1 ending January 7, 2012
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January 13, 2012
[PDF-1.70 MB]
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Journal Article:FluView
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Description:All data are preliminary and may change as more reports are received.
Synopsis: During week 1 (January 1-7, 2012), influenza activity in the United States remained relatively low.
• U.S. Virologic Surveillance: Of the 3,199 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, 108 (3.4%) were positive for influenza.
• 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. Two states experienced low ILI activity, New York City and 48 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 regional; seven states reported local activity; 37 states reported sporadic activity; the District of Columbia, Guam, the U.S. Virgin Islands and four states reported no influenza activity, and Puerto Rico did not report.
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