Details:

Corporate Authors:
National Center for Immunization and Respiratory Diseases (U.S.). Influenza Division.
Description:
Synopsis: During week 9 (February 24 – March 2, 2013), influenza activity remained elevated in the United States, but decreased in most areas.

o Viral Surveillance: Of 6,259 specimens tested and reported by collaborating laboratories, 1,074 (17.2%) were positive for influenza.

o Pneumonia and Influenza Mortality: The proportion of deaths attributed to pneumonia and

influenza (P&I) was above the epidemic threshold.

o Influenza-Associated Pediatric Deaths: Six pediatric deaths were reported.

o Influenza-Associated Hospitalizations: A cumulative rate for the season of 38.5

laboratory-confirmed influenza-associated hospitalizations per 100,000 population was

reported. Of reported hospitalizations, over 51% were among adults 65 years and older.

o Outpatient Illness Surveillance: The proportion of outpatient visits for influenza-like illness (ILI) was 2.3%. This is above the national baseline of 2.2%. Seven of 10 regions reported ILI at or above region-specific baseline levels. Four states experienced moderate activity; 13 states and New York City experienced low activity; 33 states experienced minimal activity, and the District of Columbia had insufficient data.

o Geographic Spread of Influenza: Nine states reported widespread influenza activity;

Puerto Rico and 24 states reported regional influenza activity; the District of Columbia and 13 states reported local influenza activity; 4 states reported sporadic influenza activity; Guam reported no influenza activity, and the U.S. Virgin Islands did not report.


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 9
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:c4458713dff4c9fadc68654d8f85c8e2e4d227e50f30964e8878c854f9aa3293
File Type:

Supporting Files

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