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Cyclospora in children: Symptoms and what to do

If you’ve seen news about a Cyclospora outbreak, it can feel a little scary. As a parent, you just want to keep your family safe — especially when it comes to Cyclospora in children. 

The good news is that most kids recover fully with timely Cyclospora treatment. And, there are simple steps you can take right now to lower your risk, including learning how to wash produce to avoid parasites. 

Here’s a clear breakdown of what Cyclospora is, Cyclospora symptoms in kids, causes and what to do next so you can protect against Cyclospora food poisoning. 

What is Cyclospora? 

Cyclospora is a microscopic parasite (Cyclospora cayetanensis) that can make people sick when they ingest contaminated food or water. It is not the same as common bacterial food poisoning, but Cyclospora food poisoning can still cause prolonged stomach illness. 

A key difference is that symptoms can last longer than a typical stomach bug. In the U.S., a Cyclospora outbreak tends to happen in warmer months, especially from May through August, which is important for parents monitoring Cyclospora in children. 

How do you get Cyclospora? 

Cyclospora spreads through food or water that has been contaminated with infectious oocysts (a tiny, egg-like form of certain parasites). Many recent outbreaks have been linked to fresh produce, which is why knowing how to wash produce to avoid parasites matters. 

Foods connected to past cases include: 

  • Basil 
  • Cilantro 
  • Raspberries 
  • Sugar snap peas 
  • Lettuce 

Because these foods are often eaten raw, it can be harder to fully remove the risk. Taking extra care with produce washing and storage can help reduce Cyclospora food poisoning risk during a Cyclospora outbreak. 

What are Cyclospora symptoms in kids? 

Some kids may not show symptoms at all. But when they do, the most common sign is watery diarrhea that can last longer than expected. Cyclospora symptoms in kids often include gastrointestinal discomfort and fatigue. 

Other symptoms can include: 

  • Low fever 
  • Nausea 
  • Stomach cramps or bloating 
  • Feeling very tired 
  • Weight loss 
  • Vomiting 
  • Headaches 

Symptoms usually start about 1 week after exposure, though Cyclospora symptoms in kids can begin as soon as 2 days or as late as at least 2 weeks. In children, Cyclospora symptoms may come and go if untreated. 

How long does Cyclospora illness last in children? 

Without Cyclospora treatment, illness can last several days to a few weeks, and symptoms may return.

With appropriate treatment, children typically improve within 1-2 weeks though some fatigue or altered bowel habits can linger for a short time. 

How is Cyclospora diagnosed in children? 

Diagnosis usually involves a stool test specifically ordered to detect Cyclospora. Because routine stool tests may not always include it, tell your child’s clinician about possible exposure during a Cyclospora outbreak or travel. Multiple stool samples may be needed to confirm a diagnosis in children. 

When should you call the doctor? 

Many cases get better on their own, but some signs mean it is time to call your child’s clinician. 

Reach out if your child has: 

  • Diarrhea that lasts more than a few days 
  • Severe or ongoing watery diarrhea 
  • Signs of dehydration 
  • Weight loss without a clear reason 
  • Blood in their stool 
  • Vomiting that does not stop 
  • Fever with diarrhea 
  • Symptoms that go away then come back 

Cyclospora treatment can help shorten how long the illness lasts and prevent relapses, which is especially important for Cyclospora in children. 

Is Cyclospora dangerous for kids? 

For most healthy kids, cyclospora is not life-threatening. They usually recover fully with proper Cyclospora treatment. But it can be more serious for kids with weaker immune systems or other health issues. In those cases, it may lead to: 

  • Longer illness 
  • Severe dehydration 
  • Trouble absorbing nutrients 
  • Inflammation in the body 

How to prevent Cyclospora at home 

You do not need to stop eating fresh food. But these simple habits can help keep your family safe and reduce Cyclospora food poisoning risk: 

  • Wash all fresh produce well before eating. Use safe running water, scrub firm produce, remove damaged leaves and dry with a clean towel. Learning how to wash produce to avoid parasites is a key step during a Cyclospora outbreak. 
  • Follow safe food storage and prep rules. Separate raw and ready-to-eat foods, chill produce promptly and use clean utensils. 
  • Avoid food or water that may be contaminated when traveling. Drink treated water and choose cooked foods. 

Small steps, including consistent hygiene and how to wash produce to avoid parasites, can make a big difference in preventing Cyclospora symptoms in kids. 

What if someone in your home gets sick? 

Cyclospora usually does not spread from person to person. Still, it is smart to take extra care to protect others and limit Cyclospora in children: 

  • Wash hands often 
  • Do not let the sick person prepare food 
  • Clean surfaces regularly 
  • Wash laundry with care 

These habits also help prevent other illnesses while the child completes Cyclospora treatment. 

The bottom line for parents 

Hearing about a Cyclospora outbreak can feel overwhelming. But most families can manage the risk with simple, everyday actions. 

Know what Cyclospora is, recognize Cyclospora symptoms in kids early, wash produce well and seek care promptly for Cyclospora in children when needed. With the right Cyclospora treatment and prevention steps, most kids recover fully from Cyclospora food poisoning. 

 


Assistant Professor of Pediatrics, University of Missouri-Kansas City School of Medicine; Clinical Assistant Professor of Pediatrics, University of Kansas School of Medicine