Skip directly to search Skip directly to A to Z list Skip directly to navigation Skip directly to page options Skip directly to site content

Cyclosporiasis: Detecting, Investigating, and Preventing Cases and Outbreaks of this Foodborne Parasitic Disease

Date:Thursday, June 18, 2015


Barbara L. Herwaldt, MD, MPH
Medical Epidemiologist
Division of Parasitic Diseases and Malaria
Centers for Disease Control and Prevention


Cyclosporiasis is an enteric illness caused by Cyclospora cayetanensis, an enigmatic emerging parasite that was named as recently as the early 1990s and that has repeatedly caused U.S. foodborne outbreaks. Especially during spring and summer months, clinicians should consider Cyclospora as a potential cause of prolonged or remitting-relapsing diarrheal illness and, if indicated, should explicitly request stool testing for this parasite. During this COCA call, clinicians will learn about the known risk factors for transmission of this parasite, the remaining gaps in our knowledge, and the limitations in the available approaches for diagnosing, treating, and preventing Cyclospora infection. In addition, clinicians will learn why timely reporting and investigations of cases and outbreaks of cyclosporiasis are essential.


At the conclusion of the session, the participant will be able to accomplish the following:

  • Discuss what is known about how and where Cyclospora cayetanensis is transmitted.
  • Describe the available approaches for diagnosing, treating, and preventing Cyclospora infection, including the limitations of the approaches.
  • Explain why timely reporting of Cyclospora cases to public health authorities is essential.
  • Discuss the reported U.S. foodborne outbreaks of cyclosporiasis, including the findings and constraints of the outbreak investigations.

Call Materials

Additional Resources

Call Format

  • Audio conference call on 6/18/15: 2:00 - 3:00 PM
  • Web-on-demand training after 3:00 PM on 6/18/15
  • Materials: PowerPoint slide set

Accreditation Statements

Continuing Education

Target Audience

  • Physicians
  • Nurses
  • Pharmacists
  • Veterinarians
  • Physician Assistants
  • Health Educators
  • Other Clinicians


Additional Information

  • Contact
  • Support/Funding:Centers for Disease Control and Prevention, Emergency Risk Communications Branch
  • Method of Participation:You may participate in the educational activity by viewing the program information above.
  • Fees:COCA continuing education credits are free.

Accreditation Statements

CME:The Centers for Disease Control and Prevention is accredited by the Accreditation Council for Continuing Medical Education (ACCME®) to provide continuing medical education for physicians.

The Centers for Disease Control and Prevention designates this live activity for a maximum of 1.0 AMA PRA Category 1 Credit™. Physicians should only claim credit commensurate with the extent of their participation in the activity.

CNE:The Centers for Disease Control and Prevention is accredited as a provider of Continuing Nursing Education by the American Nurses Credentialing Center's Commission on Accreditation.

This activity provides 1.0 contact hour.

IACET CEU:The CDC has been approved as an Authorized Provider by the International Association for Continuing Education and Training (IACET), 1760 Old Meadow Road, Suite 500, McLean, VA 22102. The CDC is authorized by IACET to offer 1.0 ANSI/IACET CEU's for this program.

CECH:Sponsored by the Centers for Disease Control and Prevention, a designated provider of continuing education contact hours (CECH) in health education by the National Commission for Health Education Credentialing, Inc. This program is designated for Certified Health Education Specialists (CHES) and/or Master Certified Health Education Specialists (MCHES) to receive up to total 0 Category I continuing education contact hours. Maximum advanced level continuing education contact hours available are 0. CDC provider number GA0082.

CPE:Image of acpe logo.The Centers for Disease Control and Prevention is accredited by the Accreditation Council for Pharmacy Education as a provider of continuing pharmacy education. This program is a designated event for pharmacists to receive 1.0 Contact Hour in pharmacy education. The Universal Activity Number is 0387-0000-15-099-L04-P and enduring 0387-0000-15-099-H04-P course category.

This program is knowledge based.

AAVSB/RACE:This program was reviewed and approved by the AAVSB RACE program for 1.2 hours of continuing education in the jurisdictions which recognize AAVSB RACE approval. Please contact the AAVSB RACE Program at if you have any comments/concerns regarding this program’s validity or relevancy to the veterinary profession.

DISCLOSURE:In compliance with continuing education requirements, CDC, our planners, our presenters, and their spouses/partners wish to disclose they have no financial interests or other relationships with the manufacturers of commercial products, suppliers of commercial services, or commercial supporters. Planners have reviewed content to ensure there is no bias.

The presentation will not include any discussion of the unlabeled use of a product or a product under investigational use.

CDC does not accept commercial support.