An illness that can cause diarrhea for an average of 57 days is making its way across Iowa.
You get the illness from eating food or drinking water contaminated with human feces containing the cyclospora parasite.
Iowa typically has just one or two cases a year, usually in travelers.
Officials believe fresh vegetables may be the culprit.
The best way to protect yourself is to wash fruits and vegetables well before you eat them.
Click here to see where the cases were found county by county.