tetano
Editor, Senior Moderator
Synopsis:
During week 7 (February 14-20, 2010), influenza activity remained at approximately the same levels as last week in the U.S.
* 185 (4.4%) specimens tested by U.S. World Health Organization (WHO) and National Respiratory and Enteric Virus Surveillance System (NREVSS) collaborating laboratories and reported to CDC/Influenza Division were positive for influenza.
* All subtyped influenza A viruses reported to CDC were 2009 influenza A (H1N1) viruses.
* The proportion of deaths attributed to pneumonia and influenza (P&I) was below the epidemic threshold.
* Three influenza-associated pediatric deaths were reported. One death was associated with 2009 influenza A (H1N1) virus infection and two deaths were associated with an influenza A virus for which the subtype was undetermined.
* The proportion of outpatient visits for influenza-like illness (ILI) was 1.8% which is below the national baseline of 2.3%. Three of 10 regions (Regions 1, 4, and 7) reported ILI above region-specific baseline levels.
* No states reported widespread influenza activity, three states reported regional influenza activity, Puerto Rico and eight states reported local influenza activity, the District of Columbia, Guam, and 35 states reported sporadic influenza activity, the U.S. Virgin Islands and four states reported no influenza activity.
During week 7 (February 14-20, 2010), influenza activity remained at approximately the same levels as last week in the U.S.
* 185 (4.4%) specimens tested by U.S. World Health Organization (WHO) and National Respiratory and Enteric Virus Surveillance System (NREVSS) collaborating laboratories and reported to CDC/Influenza Division were positive for influenza.
* All subtyped influenza A viruses reported to CDC were 2009 influenza A (H1N1) viruses.
* The proportion of deaths attributed to pneumonia and influenza (P&I) was below the epidemic threshold.
* Three influenza-associated pediatric deaths were reported. One death was associated with 2009 influenza A (H1N1) virus infection and two deaths were associated with an influenza A virus for which the subtype was undetermined.
* The proportion of outpatient visits for influenza-like illness (ILI) was 1.8% which is below the national baseline of 2.3%. Three of 10 regions (Regions 1, 4, and 7) reported ILI above region-specific baseline levels.
* No states reported widespread influenza activity, three states reported regional influenza activity, Puerto Rico and eight states reported local influenza activity, the District of Columbia, Guam, and 35 states reported sporadic influenza activity, the U.S. Virgin Islands and four states reported no influenza activity.