What You Need to Know About the Cyclospora Outbreak: A Simple Guide

What Happened in Michigan?

Health officials in Michigan have reported the first two deaths linked to a large cyclospora outbreak that has been spreading across several states. Here’s what we know so far:

• Two people have died — both had serious underlying health conditions that made the infection more dangerous for them
• 11,234 cases have been reported in Michigan alone
• 193 people have been hospitalized in the state
• Michigan appears to be the hardest-hit state so far

Important Point: Health experts say cyclospora infection (called cyclosporiasis) is usually not life-threatening. Deaths are very rare in the United States. These two cases involved people who were already very sick with other health problems.

Understanding the Numbers: Why Do They Differ?

You might hear different numbers from different sources. Here’s why:

Simple explanation: Michigan counts everyone doctors think has it. The CDC only counts people who got a positive lab test. Many sick people never get tested, so the real number is likely higher than both.

Where Did It Come From? The Taylor Farms Recall

In mid-July, investigators found the likely source: iceberg lettuce from central Mexico processed by Taylor Farms.

What Was Recalled?

1. Bagged salads sold in grocery stores
2. Salads served in restaurants — including Taco Bell (owned by Yum Brands)

The recalled lettuce has been removed from stores and restaurants, but new cases may still appear because:

• People may have eaten it before the recall
• It takes about a week after eating contaminated food to get sick

What Is Cyclospora? (ELI5 Explanation)

Think of it like a tiny, invisible parasite — a microscopic bug that lives in water and can stick to fresh fruits and vegetables.

Key Facts:

• Not a virus, not a bacteria — it’s a parasite (a tiny organism that lives in or on another living thing)
• Too small to see without a microscope
• Lives in contaminated water — when that water is used to irrigate crops, the parasite gets on the food
• Common on: iceberg lettuce, herbs (like cilantro and basil), raspberries, and other fresh produce

Why Summer?

Outbreaks happen more in summer because:

• More fresh produce is eaten raw
• Warm weather helps the parasite survive
• Irrigation water may be more likely to be contaminated

How Does It Spread?

How you CAN get it:

• Eating raw contaminated produce (not washed or not washed well enough)
• Drinking contaminated water

How you CANNOT get it:

• Person-to-person contact (it doesn’t spread like a cold or flu)
• Touching someone who is sick
• Cooking food properly (heat kills it)

What Are the Symptoms?

If you eat food with cyclospora, you might get sick 2–14 days later (usually about 1 week).

Common Symptoms:

• Watery diarrhea (often frequent and explosive)
• Stomach cramps and bloating
• Nausea and loss of appetite
• Fatigue (feeling very tired)
• Low-grade fever (sometimes)
• Weight loss (if diarrhea lasts a long time)

How Long Does It Last?

• Without treatment: Weeks to months (comes and goes)
• With antibiotics: Usually clears up in a few days

Callout: When to See a Doctor

• Diarrhea lasting more than 3 days
• Signs of dehydration (dry mouth, little pee, dizziness)
• Blood in stool
• High fever
• You have a weakened immune system or other serious health conditions

What Should You Do? (Numbered Steps)

If You Think You Might Be Sick:

1. Drink plenty of fluids — water, broth, or electrolyte drinks (like Pedialyte or Gatorade)
2. Call your doctor — especially if symptoms last >3 days or you have other health issues
3. Ask for a specific test — doctors must order a special test for cyclospora (it’s not on standard stomach bug panels)
4. Take antibiotics if prescribed — the standard treatment is trimethoprim-sulfamethoxazole (Bactrim/Septra)
5. Wash your hands well — after bathroom, before eating, to avoid spreading germs (even though cyclospora doesn’t spread person-to-person, other bugs do)

To Stay Safe Going Forward:

1. Wash all fresh produce under running water — even "pre-washed" bagged salads
2. Scrub firm produce (like melons, cucumbers) with a clean brush
3. Dry with a clean cloth or paper towel
4. Keep produce separate from raw meat in your fridge and cart
5. Stay informed — check FDA recalls and CDC outbreak notices

Important Points to Remember

This outbreak is the worst in recent history, but cyclospora is not new — it happens most summers

The recalled lettuce is off the market, but new cases may still be reported due to reporting delays

Most healthy people recover fully — even without treatment (though it takes longer)

Deaths are extremely rare — the two in Michigan involved people with serious pre-existing conditions

The FDA is investigating at least one MORE outbreak — so stay alert for new recalls

Summary

Michigan has reported the first two deaths in a large, multi-state cyclospora outbreak linked to iceberg lettuce from Mexico processed by Taylor Farms. Over 11,000 cases have been reported in Michigan alone, though the CDC’s confirmed count is lower because they only count lab-proven cases.

Cyclospora is a tiny water-borne parasite that gets on fresh produce like lettuce, herbs, and berries. It causes watery diarrhea, cramps, and fatigue — usually about a week after exposure. Most people recover completely, especially with antibiotics. The two deaths occurred in people with serious underlying health conditions; fatalities are very unusual.

The contaminated lettuce has been recalled from stores and restaurants (including Taco Bell). To protect yourself: wash all produce well, stay hydrated if sick, and see a doctor for diarrhea lasting >3 days.

FAQ: Your Questions Answered

1. Can I catch cyclospora from someone who has it?

No. It does not spread person-to-person. You can only get it by swallowing the parasite — usually from contaminated food or water.

2. Is bagged "pre-washed" salad safe to eat?

Not 100%. "Pre-washed" doesn’t mean sterile. Always re-wash bagged greens under running water. It reduces (but doesn’t eliminate) risk.

3. How do I know if my diarrhea is from cyclospora or something else?

You can’t tell by symptoms alone. Many stomach bugs cause similar symptoms. Only a specific lab test (ordered by your doctor) can confirm cyclospora.

4. Why is Michigan reporting so many more cases than the CDC?

Michigan reports every weekday and includes probable cases (doctor-diagnosed but not lab-confirmed). The CDC only counts lab-confirmed cases and updates weekly. Both numbers are "real" — they just measure differently.

5. Should I stop eating lettuce and salad?

No need to avoid them entirely. Just:

• Wash everything well
• Check for recalls
• Cook greens if you’re high-risk (elderly, immune-compromised, pregnant)
• The health benefits of eating vegetables far outweigh the small risk