Details:

Corporate Authors:
National Center for Immunization and Respiratory Diseases (U.S.). Influenza Division.
Description:
Synopsis: During week 12 (March 22-28, 2015), influenza activity continued to decrease, but remained elevated in the United States.

o Viral Surveillance: Of 12,014 specimens tested and reported by U.S. World Health Organization (WHO) and National Respiratory and Enteric Virus Surveillance System (NREVSS) collaborating laboratories during week 12, 1,300 (10.8%) 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: Seven influenza-associated pediatric deaths were reported.

o Influenza-associated Hospitalizations: A cumulative rate for the season of 59.9 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 2.0%, which is at the national baseline of 2.0%. Five regions reported ILI at or above region-specific baseline levels. Puerto Rico and two states experienced high ILI activity; eight states experienced low ILI activity; New York City and 40 states experienced minimal ILI activity; and the District of Columbia had insufficient data.

o Geographic Spread of Influenza: The geographic spread of influenza in four states was reported as widespread; the U.S. Virgin Islands and 20 states reported regional activity; Guam, Puerto Rico, and 22 states reported local activity; and the District of Columbia and four states reported sporadic activity.


Subject:
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Disease Outbreaks
Influenza, Human/epidemiology
Influenza A Virus, H2N2 Subtype
Public Health Surveillance

Series:
FluView : 2014-2015 Influenza Season ; Week 12
Document Type:
Newsletter
Place as Subject:
United States
Collection(s):
Stephen B. Thacker CDC Library collection
Main Document Checksum:
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urn:sha256:e78f413c7310d1eb89c0d10f24c965e3e96214997a3945113b536ddde961ef79
File Type:

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