Washtenaw Influenza Activity
November 19, 2009: Reports of lab-confirmed novel H1N1 cases (swine flu) and respiratory illness rates in schools decreased again for the week ending 11/14/09, but levels remain near peak of previous flu seasons. Unfortunately, the first death from H1N1 in a Washtenaw resident occurred this past week. The individual was an adult and did not have any significant underlying medical condition.
The majority of H1N1 cases continue to be diagnosed in persons under age 25 years, but all ages are being affected. See below for local influenza surveillance data, including hospitalizations by age groups.
Hospitalizations and Deaths of Washtenaw Residents with Confirmed Influenza
| Total Hospitalizations* |
Hospitalizations |
Total Deaths* |
|---|---|---|
|
55 |
12 |
1 |
*Starting August 30, 2009. Note: no deaths due to H1N1 were reported in any Washtenaw residents prior to this date.
Influenza Activity for Current Season
Local flu activity in 2009-10 season (pdf)
Influenza Cases and Hospitalizations by Age Group (pdf). The highest number of hospitalizations have been in 25 - 49 year olds, followed by 5 - 24 year olds and 50-64 year olds. However, 0-4 year olds and 65+ are being hospitalized at a disproportionate rate to being diagnosed with influenza.
Influenza Activity for Past Seasons
Local flu activity in 2008-09 season (pdf)
Local flu activity in 2007-08 season (pdf)
Local flu activity in 2006-07 season (pdf)
Local flu activity in 2005-06 season (pdf)
Local flu activity in 2004-05 season (pdf)
Local flu activity in 2003-04 season (pdf)
Washtenaw County Public Health Influenza Resources web page
Page updated 11/19/09
