Cyclospora Cases on the Rise: What You Should Know

With increased attention on cyclospora cases across the United States, we're sharing information to help our community better understand this infection including what causes it, how it spreads, symptoms to watch for, prevention strategies and when to seek medical care.

According to the Centers for Disease Control and Prevention (CDC), Cyclospora is a microscopic parasite (Cyclospora cayetanensis) that infects the small intestine and causes an illness known as cyclosporiasis.

As of July 13, 2026, the CDC reports that 34 states have identified cyclospora cases, with 1,645 reported illnesses and 141 hospitalizations. Health officials continue to monitor cases and investigate potential sources of infection.

Minnesota has reported one to 10 cyclospora cases since May 1, 2026, according to CDC data. However, these cases have not necessarily been linked to the current national outbreak investigation and may represent illnesses identified through routine surveillance. Minnesota Department of Health (MDH) data shows 68 cases in the state in 2025.

Cyclospora infections are often linked to contaminated food or water, particularly in fresh produce.

There are several ways someone can become infected, but the most common is by consuming food or water contaminated with the parasite. The parasite can be found:

• On fresh produce like lettuce, raspberries, bagged salad kits, basil, cilantro and more
• In contaminated drinking water
• On food handled in areas with poor sanitation

It's important to note that, unlike some stomach bugs, cyclospora isn't usually spread by person-to-person contact. Symptoms usually develop about a week after exposure and may include:

• Frequent, watery diarrhea
• Loss of appetite
• Weight loss
• Stomach cramps and bloating
• Nausea
• Fatigue
• Low-grade fever

Without proper treatment, symptoms can last for weeks to months. Standard antibiotic treatment is usually necessary to treat cyclospora.

You do not need to avoid fresh fruits and vegetables because of cyclospora concerns. Instead, practice safe food handling by washing produce thoroughly under running water, washing your hands before preparing food, and following any food safety alerts or recalls.

If you've had watery diarrhea lasting more than a few days, it's important to reach out to your healthcare provider for testing.