Health Alert: Parasite-Linked Illness Cyclosporiasis Reported in Massachusetts as Cases Rise

Massachusetts-health officials are monitoring reports of cyclosporiasis, a foodborne illness caused by a microscopic parasite that can lead to severe and persistent diarrhea, as cases increase during the summer months.

The illness, caused by the parasite Cyclospora cayetanensis, affects the intestinal system and is most commonly spread when people consume food or water contaminated with the parasite. Health experts warn that the symptoms can be more severe than a typical stomach bug and may last for weeks if left untreated.

Symptoms of cyclosporiasis may include:

• Severe watery diarrhea
• Stomach cramps and bloating
• Nausea and loss of appetite
• Fatigue
• Weight loss
• Dehydration, especially in vulnerable individuals

The parasite has previously been linked to contaminated fresh produce, including leafy greens, herbs, and other fruits and vegetables. During the summer, cases often receive increased attention because more people are eating fresh produce, traveling, and participating in outdoor activities where food safety can become a concern.

What Massachusetts residents can do

Health officials recommend taking precautions to reduce the risk of infection:

• Wash fresh fruits and vegetables thoroughly before eating
• Wash hands with soap and water before preparing food and after handling produce
• Avoid consuming food or water from questionable sources
• Pay attention to symptoms that last more than a few days

People experiencing ongoing diarrhea, signs of dehydration, or severe stomach symptoms should contact a healthcare provider. Cyclosporiasis can usually be treated with prescription medication, but testing is often needed because symptoms can resemble other stomach illnesses.

Residents across Massachusetts, including communities in Southeastern Massachusetts, should remain aware of the symptoms and practice safe food handling as health officials continue tracking cases.

Plimoth Today will continue monitoring health updates and alerts affecting Plymouth County and Massachusetts residents.