Michigan’s Parasite Outbreak Linked to Lettuce

The Michigan Department of Health and Human Services (MDHHS) has alerted the public about a significant outbreak of a parasitic illness linked to lettuce and salad greens. The agency’s investigation suggests these greens may be the source, though no specific supplier has been identified.

Dr. Natasha Bagdasarian, MDHHS Chief Medical Executive, stated, “Though a specific product hasn’t been determined, we’re sharing the information to help people take precautions.” Lettuce often appears in their findings. Updates will follow as the investigation continues.

To reduce risk, experts advise purchasing whole heads of lettuce instead of pre-washed types. Discard the outer leaves and wash the inner ones thoroughly. If greens can be cooked, ensure they’re heated to at least 158 degrees.

Michigan usually notes around 50 cyclosporiasis cases annually. However, this year, starting late June, 2,640 cases have emerged with over 40 hospitalizations. Other Midwest states are also reporting cases.

Dr. Ambreen Malik from the University of Michigan Health Sparrow explained the challenge of pinpointing the exact cause. With food sourced widely across and beyond the country, tracing the disease’s origin proves difficult.

The infection, caused by the Cyclospora cayetanensis parasite, typically spreads through food or water contaminated with feces. The Centers for Disease Control and Prevention (CDC) ties past outbreaks to produce like basil, cilantro, and raspberries.

Symptoms of cyclosporiasis often include watery diarrhea and frequent bowel movements. Additional signs are loss of appetite, cramps, bloating, nausea, vomiting, and a mild fever. If you experience these, seek medical advice promptly. Diagnosis involves a stool sample and antibiotics can treat it.

Officials urge washing all produce thoroughly under running water before consuming, cutting, or cooking. Scrub firm produce with a clean brush, remove damaged parts before preparation, and refrigerate cut or cooked items quickly.