Two separate E. coli outbreaks in Ontario, with a total of 34 confirmed and suspected cases, may have been the result of tainted lettuce. But health officials say there’s no longer a threat to the public, according to CTV News.

Officials are investigating outbreaks stemming from a restaurant in Sudbury and a school in Hamilton. The cities, which are about five hours away from each other, both had outbreaks dating back to late September.