ARCHIVED - Cyclosporiasis
Nationally notifiable since 2000
1.0 National Notification
Only confirmed cases of disease should be notified.
2.0 Type of Surveillance
Routine case-by-case notification to the federal level
3.0 Case Classification
3.1 Confirmed case
Laboratory confirmation of infection in a person with or without clinical illness:
- demonstration of Cyclospora cayetanensis oocysts in stool, duodenal/jejunal aspirate or small bowel biopsy
3.2 Probable case
Clinical illness in a person with evidence of:
- an epidemiologic link to a confirmed case either by consumption of the same food or exposure to food known to be handled by a confirmed case
- a history of travel to a cyclospora-endemic area
4.0 Laboratory Comments
5.0 Clinical Evidence
Clinical illness is characterized by watery diarrhea, loss of appetite, weight loss, abdominal bloating and cramping, increased flatus, nausea, fatigue and low-grade fever. Vomiting may also be noted. Relapses and asymptomatic infections can occur. Some evidence suggests that symptoms may be more severe and long-lasting in immunocompromised individuals.
6.0 ICD Code(s)
6.1 ICD-10 Code(s)
- Other specified protozoal intestinal diseases (includes Cyclospora cayetanensis)
6.2 ICD-9/ICD-9CM Code(s)
7.0 Type of International Reporting
Probable case definitions are provided as guidelines to assist with case finding and public health management, and are not for national notification purposes.
The disease is not endemic in Canada; therefore, cases should be investigated as most likely associated with imported food or travel.
Centers for Disease Control and Prevention. MMWR 1997. Case definitions for infectious conditions under public health surveillance. Retrieved May 2008, from http://www.cdc.gov/ncphi/disss/nndss/casedef/cyclosporiasis_current.htm
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