There are apprehensions that the two E. coli cases in southern Ontario may be linked to iceberg lettuce that is distributed to hospitals, long-term care homes and restaurants. An alert has been issued by Public Health authorities.

Test results indicate that two cases are of the same strain of E. coli that has been identified in 38 cases in the United States.

Dr. David Williams, the acting chief medical officer of health for Ontario said, "All of the cases are thought to be linked to shredded iceberg lettuce distributed by Aunt Mid's Produce Company.This product is distributed in five-pound industrial bags to institutions such as hospitals and long-term care homes, as well as restaurants in southwestern Ontario."

The lettuce was last distributed in Ontario on Sept. 26. Since the product has a 12-day shelf-life, it could still be in circulation or use. Investigations are being carried out by the Food Inspection Agency