Details:

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 46 (November 11-17, 2012), influenza activity increased in the U.S.

o Viral Surveillance: Of 3,742 specimens tested and reported by U.S. World Health Organization (WHO) and National Respiratory and Enteric Virus Surveillance System (NREVSS) collaborating laboratories during week 46, 494 (13.2%) 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: One influenza-associated pediatric death was reported and was associated with an influenza A (H3) virus.

o Outpatient Illness Surveillance: The proportion of outpatient visits for influenza-like illness (ILI) was 1.6%, which is below the national baseline of 2.2%. All 10 regions reported ILI below region-specific baseline levels. One state experienced high ILI activity, two states experienced moderate ILI activity; 3 states experienced low ILI activity; New York City and 41 states experienced minimal ILI activity, and the District of Columbia and 3 states had insufficient data.

o Geographic Spread of Influenza: The geographic spread of influenza in 1 state was

reported as widespread; 6 states reported regional activity; 8 states reported local activity; the District of Columbia, Guam, and 31 states reported sporadic activity; 3 states reported no influenza activity, and Puerto Rico, the U.S. Virgin Islands and 1 state did not report.

Publication date from document properties.


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

Series:
FluView : 2013-2014 Influenza Season ; Week 46
Document Type:
Newsletter
Place as Subject:
United States
Collection(s):
Stephen B. Thacker CDC Library collection
Main Document Checksum:
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urn:sha256:5d5044bc8b3343b903e231c592ada8ea6fa1ede669418397bb0ae1126e383dd6
File Type:

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