A microscopic parasite is behind a summer wave of “explosive” diarrhea spreading across the United States. Health officials are tracking a sharp rise in cases, and while it sounds alarming, the illness is usually treatable and rarely dangerous.

This July 4th weekend, you may want to give those raw berries or green salad the side-eye.

More than 170 cases of cyclosporiasis have been identified across Michigan, up from 150 several days prior.