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FluView : 2014-2015 Influenza Season ; Week 15 ending April 18, 2015
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April 24, 2015
[PDF-1.39 MB]
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Journal Article:FluView
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Description:Synopsis: During week 15 (April 12-18, 2015), influenza activity continued to decrease in the United States.
o Viral Surveillance: Of 10,457specimenstested and reported by U.S. World Health Organization (WHO) and National Respiratory and Enteric Virus Surveillance System (NREVSS) collaborating laboratories during week 15, 795 (7.6%) were positive for influenza.
o Pneumonia and Influenza Mortality: The proportion of deaths attributed to pneumonia and influenza (P&I) was below the epidemic threshold.
o Influenza-associated Pediatric Deaths: Three influenza-associated pediatric deaths were reported.
o Influenza-associatedHospitalizations:Acumulativeratefortheseason of 63.6 laboratory-confirmed influenza-associated hospitalizations per 100,000 population was reported.
o Outpatient Illness Surveillance: The proportion of outpatient visits for influenza-like illness (ILI) was 1.4%, which is below the national baseline of 2.0%. All 10 regions reported ILI below region-specific baseline levels. Puerto Rico experienced low ILI activity; New York City and 50 states experienced minimal ILI activity; and the District of Columbia had insufficient data.
o Geographic Spread of Influenza: The geographic spread of influenza in three states was reported as widespread; Guam and 10 states reported regional activity; the District of Columbia and 18 states reported local activity; Puerto Rico, the U.S. Virgin Islands, and 17 states reported sporadic activity; and two states reported no influenza activity.
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