FluView : 2014-2015 Influenza Season ; Week 16 ending April 25, 2015
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FluView : 2014-2015 Influenza Season ; Week 16 ending April 25, 2015

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    • Description:
      Synopsis: During week 16 (April 19-25, 2015), influenza activity continued to decrease in the United States.

      o Viral Surveillance: Of 8,294 specimens tested and reported by U.S. World Health Organization (WHO) and National Respiratory and Enteric Virus Surveillance System (NREVSS) collaborating laboratories during week 16, 542 (6.5%) were positive for influenza.

      o Pneumonia and Influenza Mortality: The proportion of deaths attributedto pneumonia and influenza (P&I) was below the epidemic threshold.

      o Influenza-associated Pediatric Deaths: Five influenza-associated pediatric deaths were reported.

      o Influenza-associated Hospitalizations :A cumulative rate for the season of 64.3 laboratory-confirmed influenza-associated hospitalizations per 100,000 population was reported.

      o OutpatientIllnessSurveillance: The proportion of outpatient visits for influenza-like illness (ILI) was 1.4%, which is below the national baseline of 2.0%. Two regions reported ILI at or above region-specific baseline levels. Puerto Rico experienced low ILI activity; New York City and 49 states experienced minimal ILI activity; and the District of Columbia and one state had insufficient data.

      o Geographic Spread of Influenza: The geographic spread of influenzain three states was reported as widespread; Guam and nine states reported regional activity; Puerto Rico and 14 states reported local activity; the District of Columbia, the U.S. Virgin Islands, and 21 states reported sporadic activity; and three states reported no influenza activity

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