Cyclosporiasis

Disease Information

Cyclospora is a parasite that is composed of only one cell. It is too small to be seen with the naked eye (only 8-10 microns in diameter). Its full name is Cyclospora cayetanensis. It used to be called such names as cyanobacterium-like, coccidian-like, and Cyclospora-like bodies (CLBs). Cyclospora infects the small intestine (bowel) and usually causes watery diarrhea, with an average of about 6 to 7 stools per day. Other symptoms can include loss of appetite, weight loss, bloating, increased flatus (gas), stomach cramps, nausea, vomiting, tiredness, muscle aches, and low-grade fever.

Disease Reporting

What is required?

Health Care Providers and Clinical Laboratories

Health care providers and clinical laboratories are required by law to report cases and suspect cases of cyclosporiasis to local health departments within one working day of identification.

Health care providers: Use our secure web-based confidential reporting system – OR – use the confidential PDF reporting form.
See How and Where to Report for more information and local health department contacts.

Cases are subject to restriction on school and day-care attendance, food handling, and patient care for the duration of any diarrhea and/or vomiting.

For Tribal and Local Public Health Authorities

Cyclosporiasis Case Report Form (pdf)

For reportable diseases lacking Oregon-specific investigative guidelines or case report forms, please contact the state epidemiologist on call for assistance at 971-673-1111.