Associated Press - September 29, 2008 6:04 PM ET
LANSING, Mich. (AP) - The number of confirmed E. coli sickness cases continues to climb in Michigan.
The state Department of Community Health says Monday that 30 cases with the same DNA fingerprinting have been identified.
Some of the cases from this month are at Michigan State University, the University of Michigan and the Lenawee County Jail. Other cases are in St. Clair County, Wayne County, Macomb County, Oakland County and Kent County.
Health officials say some of the recent cases might be associated with industrial-sized packages of iceberg lettuce sold to restaurants and institutions from Detroit-based Aunt Mid's Produce Company.
There is no evidence that lettuce at grocery stores is affected.
Product testing continues.