Cyclosporiasis can ruin a summery picnic with explosive diarrhea and other food poisoning symptoms, according to the CDC. See the impacted states.

An outbreak of a parasitic infection that causes “explosive” diarrhea is sickening many in the Midwest and it can spread through contaminated produce and water, sparking a warning from health officials as they search for a source.

At least 170 Michiganders have contracted a parasitic gastrointestinal infection called cyclosporiasis. Here are the CDC's tips to prevent illness.

Health officials are tracking a seasonal spike in cases of cyclosporiasis, an intestinal illness that can cause “explosive” diarrhea, among other symptoms.

A parasitic infection that causes “explosive” diarrhea is spreading across the U.S., with hundreds of cases reported in over a dozen states, including a major Midwest outbreak. The U.S. Centers for Disease Control and Prevention reported in June that 145 cases of cyclosporiasis have been confirmed in people in the U.

Health officials are investigating a Cyclospora outbreak spanning 17 states after more than 145 people became ill.