Cyclospora Outbreak 2026: Symptoms, Safety & Treatment
Key Takeaways
- This cyclospora outbreak has sickened over 1,250 people in Michigan and spread to 17 states.
- The CDC is looking for the source. They have not found it yet.
- Symptoms include watery diarrhea, fatigue, and fever. They can last for weeks.
- Washing produce helps but may not remove Cyclospora. Cooking kills it.
- Treatment is an antibiotic called Bactrim or Septra.
Have you heard about the cyclospora outbreak in the Midwest? If not, you are not alone. This parasite is not well known. But the CDC is tracking an outbreak with over 1,250 cases in Michigan. Cases are in 17 states. The source is still unknown. If you eat fresh produce, you need to know about this cyclospora outbreak. Here’s how to protect yourself.
Quick Answer: What Is the Cyclospora Outbreak?
This cyclospora outbreak is a large cluster of infections from the parasite Cyclospora. It is linked to fresh produce. The Midwest is hit hardest. Michigan has 1,250 cases. The CDC is investigating.
What Is Cyclospora?
Cyclospora is a tiny parasite. It infects the small intestine. You get it by swallowing contaminated food or water. It does not spread from person to person. That makes it different from many stomach bugs. Outbreaks often come from imported produce like raspberries, basil, cilantro, or lettuce. The CDC says Cyclospora is more common in warm regions. But outbreaks happen in the U.S. every spring and summer.
Cyclospora Outbreak: Current Situation in 2026
As of July 2026, this cyclospora outbreak is centered in the Midwest. Michigan has 1,250 cases. The CDC sees cases in 17 states. They have started a traceback to find the food source. According to NPR, this may be one of the largest Cyclospora outbreaks in years. Health officials urge anyone with symptoms to see a doctor and report it.
Symptom Checklist
Call your doctor if you have any of these, especially after eating fresh produce:
• Watery diarrhea (often sudden)
• Loss of appetite and weight loss
• Bloating, gas, stomach cramps
• Nausea and fatigue
• Low-grade fever
Symptoms start about a week after exposure. They can last for weeks without treatment.
How to Stay Safe During the Cyclospora Outbreak
Here’s the tricky part: Washing produce can help, but it may not remove Cyclospora. The parasite has a hard outer shell. Water and chlorine do not break it down. Cooking kills it, so cooked vegetables are safe. For raw produce, especially berries and herbs, you have fewer options.
Until the CDC finds the source, buy domestic produce or cook imported items well. General produce washing guidelines recommend scrubbing firm produce under running water. But the CDC notes that routine chemical disinfection or sanitizing methods are unlikely to kill Cyclospora specifically. Cooking remains the only reliable method.
How Is Cyclospora Spread?
You get Cyclospora by eating or drinking something with the parasite. It is not contagious between people. So you cannot catch it from a sick friend. The parasite is often on imported fresh produce from countries where Cyclospora lives in the soil. That is why outbreaks are tied to specific shipments of berries, herbs, or salad greens.
Treatment: When to See a Doctor
If you have watery diarrhea for more than a few days, or if you cannot keep fluids down, see a doctor. Cyclospora is diagnosed with a stool test. It is often mistaken for other bugs. Tell your doctor about the cyclospora outbreak if you live in an affected area.
The standard treatment is an antibiotic called trimethoprim-sulfamethoxazole. It is also known as Bactrim or Septra. You usually take it for typically 7 days (longer courses may be needed for immunocompromised patients). If you are allergic to sulfa drugs, tell your doctor. There are other options, but they may work less well. Without treatment, symptoms can last weeks and come and go.
Frequently Asked Questions About the Cyclospora Outbreak
Can I prevent Cyclospora by washing produce?
Washing helps but does not fully remove the parasite. Cooking is the only way to kill it. If you are worried, stick to cooked vegetables for now.
How long does Cyclospora last?
Without treatment, symptoms can last from a few days to a month or more. With antibiotics, most people feel better within a week.
Should I stop eating fresh produce?
No need to panic. You can still eat cooked or domestically grown produce. Until the source is found, you may want to avoid imported berries and herbs.
The Bottom Line
The cyclospora outbreak is real and growing. But you do not need to worry too much. Stay informed through the CDC and your local health department. If you get watery diarrhea that lasts, see a doctor. Mention the outbreak. With the right diagnosis and treatment, you will recover. Until the source is found, wash produce well and cook imported items. That is your best defense.
