Pennsylvania health officials say the state has, so far, mostly avoided a foodborne parasite outbreak that has made thousands of people sick across the U.S.

The Pennsylvania Department of Health says it has recorded 28 cases of cyclosporiasis in the Commonwealth. The parasite is linked to contaminated fresh produce like salad greens, cilantro, basil, raspberries and snow peas.

The parasite can cause severe diarrhea, nausea and stomach cramps that last for weeks.