30% Influenza Test Positive U.S.A Flu- CDC -

For the above season...

During September 28–November 29, 2008, the United Statesexperienced a low level of influenza activity which is typicalfor this time of year and similar to the past four influenzaseasons. The peak of influenza activity has come before Januaryin only five of the past 20 seasons; February or March has beenthe peak month in 11 of those 20 seasons (CDC, unpublished data,2008). ... providers should offerinfluenza vaccine throughout the influenza season (which canpersist as late as April or May) to protect as many personsfrom influenza infection and its complications as possible.

http://jama.ama-assn.org/cgi/content/full/301/4/371

to compare to last season... 2007-2008

FIGURE%201.%20Number*%20and%20percentage%20of%20respiratory%20specimens
testing%20positive%20for%20influenza%20reported%20by%20World%20Health
Organization%20and%20National%20Respiratory%20and%20Enteric%20Virus
Surveillance%20System%20collaborating%20laboratories,%20by%20type,%20week,
and%20year%20—%20United%20States,%20September%2030,%202007–May%2017,%202008†

During September 30, 2007--May 17, 2008,** World Health Organization and National Respiratory and Enteric Virus Surveillance System collaborating

laboratories in the United States tested 225,329 specimens for influenza viruses; 39,827 (18%) were positive (Figure 1).

Of the positive specimens, 28,263 (71%) were influenza A viruses, and 11,564 (29%) were influenza B viruses. Among the influenza A viruses, 8,290 (29%) were subtyped; 2,175

(26%) were influenza A (H1N1), and 6,115 (74%) were influenza A (H3N2) viruses.

The proportion of specimens testing positive for influenza first exceeded 10% during the week ending January 12, 2008 (week 2), peaked at 32% during the week ending February 9, 2008 (week 6), and declined to <10% during the week ending April 19, 2008 (week 16). The proportion positive was above 10% for 14 consecutive weeks. The peak percentage of specimens testing positive for influenza during the previous three seasons ranged from 22% to 34% and the peak occurred during mid-February to early March (1). During the previous three influenza seasons, the number of consecutive weeks during which more than 10% of specimens tested positive for influenza ranged from 13 to 17 weeks (1).

http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5725a5.htm

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Guests Members Profile Send Private Message Find Members Posts Add to Buddy List Guest Group	Post Options Post Reply Quote Guests Thanks(0) Quote Reply Posted: January 31 2009 at 3:10pm
	For the above season... During September 28–November 29, 2008, the United Statesexperienced a low level of influenza activity which is typicalfor this time of year and similar to the past four influenzaseasons. The peak of influenza activity has come before Januaryin only five of the past 20 seasons; February or March has beenthe peak month in 11 of those 20 seasons (CDC, unpublished data,2008). ... providers should offerinfluenza vaccine throughout the influenza season (which canpersist as late as April or May) to protect as many personsfrom influenza infection and its complications as possible. http://jama.ama-assn.org/cgi/content/full/301/4/371 to compare to last season... 2007-2008 During September 30, 2007--May 17, 2008, World Health Organization and National Respiratory and Enteric Virus Surveillance System collaborating laboratories in the United States tested 225,329 specimens for influenza viruses; 39,827 (18%) were positive (Figure 1). Of the positive specimens, 28,263 (71%) were influenza A viruses, and 11,564 (29%) were influenza B viruses. Among the influenza A viruses, 8,290 (29%) were subtyped; 2,175 (26%) were influenza A (H1N1), and 6,115 (74%) were influenza A (H3N2) viruses. The proportion of specimens testing positive for influenza first exceeded 10% during the week ending January 12, 2008 (week 2), peaked at 32% during the week ending February 9, 2008 (week 6), and declined to <10% during the week ending April 19, 2008 (week 16). The proportion positive was above 10% for 14 consecutive weeks. The peak percentage of specimens testing positive for influenza during the previous three seasons ranged from 22% to 34% and the peak occurred during mid-February to early March (1). During the previous three influenza seasons,** the number of consecutive weeks during which more than 10% of specimens tested positive for influenza ranged from 13 to 17 weeks (1). http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5725a5.htm