2009-2010 Influenza Season Week 9 ending March 6, 2010

2009-2010 Influenza Season Week 9 ending March 6, 2010
All data are preliminary and may change as more reports are received.

Synopsis:
During week 9 (February 28 – March 6, 2010), influenza activity remained at approximately the same levels as last week in the U.S

* 174 (5.1%) 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.
* No influenza-associated pediatric deaths were reported.
* The proportion of outpatient visits for influenza-like illness (ILI) was 1.9% which is below the national baseline of 2.3%. Three of 10 regions (Regions 4, 7, and 9) reported ILI at or above region-specific baseline levels.
* No states reported widespread influenza activity, five states reported regional influenza activity, Puerto Rico and six states reported local influenza activity, Guam, and 33 states reported sporadic influenza activity, the U.S. Virgin Islands and six states reported no influenza activity, and the District of Columbia did not report.

open here:
http://www.cdc.gov/flu/weekly/