At least eight people are sick with Shigella and the common source appears to be a Subway restaurant in Lombard which has now been closed by the DuPage County Health Department.

Maryann O’Neill, principal of nearby Montini Catholic High School in Lombard, told the Chicago Tribune two students called in sick Wednesday with what she said was diagnosed as food poisoning, and it was her understanding they had eaten at Subway. One of the students was taken to a hospital emergency room.