A McDonald's restaurant in Dallas.

People in at least another five states have been sickened by tainted McDonald's salads. 

Health officials in Missouri, Wisconsin, Nebraska, South Dakota and Minnesota all report they now have cases of people infected by the Cyclospora parasite that they believe came from having eaten lettuce in salads at McDonald's. But the numbers, so far, are limited. Each of the states has two cases, except for Missouri, which has seven, and Minnesota, which has three.