Respiratory Virus Surveillance 2009-10

Strong Memorial Hospital Virology Laboratory
Rochester, NY - November 16, 2009

For national surveillance data see: www.Flustar.com

Number of Positive Specimens:

Influenza A Virus: N = 571
- 99% Influenza A in USA subtype: H1N1 2009
Influenza B Virus: N = 1
- Influenza B patient recently vaccinated with FluMist®
Respiratory Syncytial Virus: N = 7

Flu graph. Less than 25 cases week ending 10/17. 100 cases 10/24. Peaked at 160 cases 10/31. Down to about 120 cases 11/14.

RSV graph. Less than 5 cases per week since start of season in August.

Last Year (2008-09)

Regular flu peaked end of March at about 50 cases per week. After H1N1 virus entered US, new cases all type A peaked at almost 250 cases per week mid June. Few cases starting beginning of August, none last week.