Lettuce or salad greens could be source of diarrhea-causing illness, Michigan health officials say​Lettuce or salad greens could be source of diarrhea-causing illness, Michigan health officials say 

 The foodborne gastrointestinal illness has shown up in 31 states, and federal health officials say 86 people have been hospitalized.  ​​The foodborne gastrointestinal illness has shown up in 31 states, and federal health officials say 86 people have been hospitalized.