Frequent diarrhea can wreck your whole day. It leaves you drained, uncomfortable, and, more often than not, wondering what’s actually going on. When it lasts longer than a typical stomach bug or seems to improve and then comes right back, a parasite called Cyclospora may be behind it.
Cyclospora spreads through contaminated food or water and causes an intestinal illness called cyclosporiasis. Most people recover completely, but without treatment, the infection can continue for weeks and lead to dehydration. The parasite is too small to see without a microscope, so there’s no way to tell whether food or water is contaminated just by looking, smelling, or tasting.
How Do You Get It, and Is It Contagious?
People usually get infected by eating food or drinking water contaminated with Cyclospora. Fresh fruits, vegetables, herbs, and salad products have been connected to past outbreaks, though that doesn’t mean every product in those categories is unsafe.
Here’s some good news, though: Cyclospora doesn’t usually spread directly from person to person, since the parasite typically needs time outside of the body before it can infect someone new. Still, wash your hands carefully and avoid preparing food for others while you’re sick, since other contagious germs can cause similar symptoms.
What Are The Symptoms?
The most common symptom is frequent, watery diarrhea. Symptoms usually begin about a week after exposure, but they can also appear within a couple of days or over two weeks later. Other symptoms can include:
- Stomach cramps or bloating
- Nausea or loss of appetite
- Fatigue and unintentional weight loss
- Low-grade fever, headache, or body aches
If several of these sound familiar, Duly’s primary care team can help you figure out what’s going on rather than waiting to see if it passes. Schedule an appointment today. >
Some people carry the infection without ever feeling sick. Other times, diarrhea improves only to return later, even after other symptoms ease.
When Should You See a Doctor?
A typical viral stomach bug usually clears up within a few days. Cyclospora tends to stick around much longer. Reach out to your provider if:
- Diarrhea lasts more than a few days
- Symptoms improve, then come back
- You’re losing weight without trying
- You’ve recently traveled or eaten food linked to an outbreak
Watch for dehydration, too: a dry mouth, dark urine, dizziness, or trouble keeping fluids down are worth taking seriously. Confusion, fainting, or rapidly worsening symptoms call for urgent care rather than a wait-and-see approach.
If symptoms are dragging on and you can’t get in with your regular provider, Duly Immediate Care locations post current wait times online, so you can walk in when it works for your schedule.
How Is It Diagnosed and Treated?
Diagnosis requires a stool test, and standard tests don’t always automatically screen for Cyclospora. Your provider may need to request it specifically, sometimes across multiple samples. A Duly primary care provider can order the right testing and rule out other causes before treatment starts.
The standard treatment is a combination antibiotic called trimethoprim-sulfamethoxazole, or TMP-SMX, which contains a sulfa medication. Always tell your provider about any allergies when discussing treatments.
What Helps While You Recover?
Replacing fluids matters most. Take small, frequent sips rather than large gulps of water, broth, or electrolyte drinks. As your appetite returns, ease in with toast, rice, bananas, potatoes, soup, or simple lean proteins, then gradually work back to your normal diet. Go easy on alcohol, caffeine, greasy or spicy foods, and heavy dairy in the meantime.
How Can You Lower Your Risk?
When handling produce:
- Start with clean hands, before and after
- Rinse produce thoroughly under running water
- Scrub firm items with a clean produce brush
- Refrigerate anything cut promptly, and skip the soap or bleach
Washing can reduce contamination, but it may not remove every Cyclospora parasite. When traveling somewhere with uncertain food or water safety, stick to sealed or treated water, skip questionable ice, and choose food that’s fully cooked and served hot.
Frequently Asked Questions
- Is Cyclospora contagious? Not really, at least not directly. The parasite needs time outside the body before it can infect someone else.
- Can washing produce remove it? It helps, but it isn’t foolproof.
- Can you get it more than once? Yes. Recovering from one infection doesn’t protect you from a future exposure.
- Does a regular stool test detect it? Not always. Your provider may need to request it specifically.
Get Care for Persistent Diarrhea
Persistent diarrhea has many possible causes, and symptoms alone often aren’t enough to distinguish among them. A healthcare provider can check for dehydration, review your medical history, and order appropriate tests. Seek care when diarrhea lasts more than a few days, keeps returning, or makes it hard to stay hydrated.
If you suspect that you have cyclosporiasis, your primary care provider is who you should contact first. They can order the stool test, start treatment if it’s confirmed, and, for cases that are severe or slow to respond, refer you to an infectious disease physician for more specialized care.
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