Staying Safe and Healthy: What You Need to Know About the Summer Cyclospora Surge

Summer is a wonderful time to enjoy the sunshine and load up on fresh, crisp fruits and vegetables. However, public health officials are currently tracking an unusually high surge of a foodborne illness called cyclosporiasis. Hundreds of cases have popped up across more than 30 states, with a particularly large concentration hitting the Midwest. It is a good time to review how this microscopic bug spreads and how you can protect yourself. Because our immune systems naturally change as we age, staying informed is one of the best tools we have.

Medical Disclaimer: The information in this article is for educational purposes only and should not replace professional medical advice, diagnosis, or treatment. Always consult your healthcare provider if you are experiencing severe or persistent gastrointestinal symptoms.

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What is Cyclosporiasis?

Cyclosporiasis is an intestinal illness caused by a tiny, single-celled parasite called Cyclospora cayetanensis. This parasite finds its way onto raw fruits, vegetables, or herbs when they come into contact with contaminated water or soil during harvesting and packaging.

Unlike a typical stomach flu or bacterial food poisoning, Cyclospora is not passed directly from person to person. It requires time in the environment to become infectious. Instead, it enters our bodies entirely through the fresh produce we eat.

Symptoms to Watch For

If you happen to ingest the parasite, symptoms typically begin to surface about one week later, though they can show up anywhere between two days and two weeks. The hallmark symptom is watery, frequent, and sometimes explosive diarrhea.

Other common signs include:

• Stomach cramps and bloating
• Loss of appetite and nausea
• Unexplained fatigue
• Slight fever or vomiting (less common)
• Weight loss

If left untreated, these symptoms can persist for weeks, or they may seem to disappear only to return a few days later. For older adults, prolonged diarrhea can rapidly lead to dehydration, making it important to catch early.

Actionable Tips for Safe Summer Eating

Public health investigators are actively looking for the exact food sources behind the current spike, but past outbreaks have frequently been linked to fresh items like bagged salad mixes, cilantro, basil, berries, green onions, and snow peas. While you do not need to give up your favorite summer greens, making a few slight adjustments to your kitchen routine can significantly lower your risk:

• Ditch the Pre-Cut Bags: During an active outbreak investigation, consider buying whole heads of lettuce instead of pre-washed, bagged salad kits.
• Strip the Outer Layers: When preparing leafy greens, always remove and discard the outer two to three leaves before washing the rest.
• Wash Thoroughly Under Running Water: Give your fruits and vegetables a vigorous rinse under clean, running tap water. For firm produce like melons or cucumbers, use a clean vegetable brush to scrub the skin. Note: Veggie washes or soaps aren’t proven to be more effective than plain water, and the parasite can cling tightly, so physical rubbing is key.
• Cook When Practical: Heat destroys the parasite completely. If you have a compromised immune system or want to play it extra safe, enjoy your spinach, basil, or green onions cooked into savory summer dishes rather than raw.
• Keep Your Kitchen Clean: Wash your hands with warm water and soap for at least 20 seconds before and after handling food. Ensure your cutting boards and utensils are thoroughly sanitized.

When to Contact Your Doctor

If you experience diarrhea that lasts for more than a few days, or if you feel exceptionally weak and fatigued, pick up the phone and call your healthcare provider.

An important detail to remember: Routine medical stool tests do not always automatically screen for Cyclospora. When you call or visit your doctor, explicitly mention that you have heard about the current Cyclospora outbreak and ask if a specific test for this parasite is appropriate for you. If diagnosed, it can be treated effectively with a standard course of antibiotics.

Enjoying a vibrant, healthy retirement means balancing an active lifestyle with a few smart safety habits. By staying alert to public health updates and taking a little extra care at the kitchen sink, you can safely enjoy all the delicious flavors summer has to offer.

Sources & Additional Reading

• CDC: Surveillance of Cyclosporiasis
• Iowa State University Extension: Protect Yourself and Your Family During the Ongoing Cyclospora Outbreak
• FDA: 7 Tips for Cleaning Fruits and Vegetables