Cyclospora

Also called Cyclosporiasis

Cyclospora is a tiny parasite that infects the bowel and causes watery diarrhoea that can last for weeks if not treated. It is usually caught from food or water contaminated with infected stool, most often after travelling to tropical or subtropical countries, or from imported fresh produce.

Last updated Nov 9, 2026

What it is

It does not spread directly from person to person.

It is treated with an antibiotic. Drinking plenty of fluids is important while you have diarrhoea.

Common signs

  • Watery diarrhoea
  • Stomach cramps, bloating and wind
  • Loss of appetite and weight loss
  • Tiredness and feeling sick

How it is usually diagnosed

  • A stool sample tested for the parasite

Records worth keeping

Keeping these together makes each appointment easier, especially when you see a new doctor:

  • Stool test results
  • Travel dates and destinations

Questions to ask your doctor

  • Which treatment do I need, and for how long?
  • When can I go back to work?
  • What if symptoms come back?

When to get help right away

Call 112 or go to the nearest emergency department if you have:

  • Signs of severe dehydration, such as confusion, very little pee or fainting

This page is general information. It is not a diagnosis and does not replace a doctor who knows your history. Medfold keeps your records organised; it does not interpret them.

Sources