Symptoms of Cyclosporiasis

For Everyone

Key points

  • Cyclosporiasis symptoms can vary.
  • Symptoms usually begin about one week after becoming infected.
  • Watery diarrhea is the most common symptom of cyclosporiasis.
  • See a healthcare provider if you are experiencing symptoms of cyclosporiasis.
Person sitting on a toilet.

Signs and symptoms

People experience symptoms of cyclosporiasis about one week (ranging as soon as 2 days – 2 weeks or more) after consuming food or drinking water containing Cyclospora.

Some people who are infected, particularly people from areas where cyclosporiasis is endemic (regularly occurring within an area or region), may not have any symptoms.

Without treatment, symptoms can last anywhere from a few days to a month or longer. Some symptoms, such as diarrhea, may go away and then return. Other symptoms, such as fatigue, may continue after the gastrointestinal symptoms have stopped.

Common symptoms
  • Watery diarrhea
  • Loss of appetite
  • Weight loss
  • Cramping
  • Bloating
  • Increased gas
  • Nausea
  • Fatigue
Less common symptoms
  • Vomiting
  • Body aches
  • Headache
  • Low-grade fever
  • Other flu-like symptoms
Content Source
National Center for Emerging and Zoonotic Infectious Diseases (NCEZID)
About This Page
Published: May 15, 2024
Updated: February 26, 2024

This page was last updated on this date. Updates may include minor edits, image changes, or other modifications to page content.

Reviewed: February 26, 2024

The information on this page was last reviewed by subject matter experts to ensure accuracy.