The Winston-Salem Journal reports that at least three people have become ill from E. coli O157:H7 infections after attending the North Carolina State Fair.

A 2004 outbreak at the fair was traced to a petting zoo; however, the suspected source of this latest outbreak is a food stand.

Two adults and a teenager got sick after eating chicken pita sandwiches from a food vendor, which wasn’t identified, near Dorton Arena. Two of them have been hospitalized.