GI IMPACT Study

The Diarrhea Study

Cyclospora - Information for Patients


What kind of infection is it?

Cyclospora cayetanensis is a single celled parasite.

How do people get infected?

  1. Cyclospora is found all over the world.
  2. Many infections are in people who have traveled to poor countries.
  3. Outbreaks have been due to eating contaminated fresh lettuce, cilantro, basil, and raspberries.

What are the usual symptoms?

  1. Illness usually develops about a week after exposure but can be from 2-14 days.
  2. Nausea, poor appetite, gas, bloating, diarrhea, stomach cramps, fatigue, low grade fever, and weight loss.
  3. Symptoms can come and go.

How long does it last?

  1. Without treatment symptoms often last 3-4 weeks.

How is it treated?

  1. Prevent and treat dehydration. Warning signs of dehydration include dry mouth, decreased urination, or dizziness.
  2. Because it tends to last a long time, most people with Cyclospora benefit from treatment with a specific type of antibiotic. Ask your doctor about treatment.

Are there possible complications?

  1. Significant weight loss can occur.
  2. A few people have developed infections of the gall bladder.

Comments:

  1. The best way to avoid Cyclospora is to avoid food and water that may be contaminated with human waste.
  2. When traveling to poor countries, avoid untreated water or ice made with untreated water. Eat cooked foods that are served hot.

Resources:

  1. CDC Handout