<i>Cyclospora</i>Sp.: A Coccidian That Causes Diarrhoea In Travellers

SUMMARY The coccidian parasite Cyclospora cayetanensis is recognized as an emerging pathogen that causes protracted diarrhea in humans. The first cases of Cyclospora infection were reported in the late 1970s and were observed among expatriates and travelers in regions where infections are endemic. Since then, Cyclospora has been considered a cause of traveler's diarrhea. Epidemiological investigations were reported and examined in areas of endemicity even before the true identity of Cyclospora was elucidated. Cyclospora was fully characterized in the early 1990s, but it was not until the 1995 Cyclospora outbreak in the United States and Canada that it caught the attention of the public and physicians. The biology, clinical presentation, epidemiology, diagnosis, treatment, and control of cyclosporiasis are reviewed, with a focus on diagnostic assays currently being used for clinical and environmental samples. Challenges and limitations in working with Cyclospora are also discussed.

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Prevalence of infection with Cryptosporidium parvumand Cyclospora cayetanensis among international travellers

Jelı́nek

Lotze

Eichenlaub

et al. 1997

Gut

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Background-Cryptosporidium parvum and Cyclospora cayetanensis are recognised as possible pathogens of traveller's diarrhoea. Aims-To identify the prevalence of C parvum and Cyc cayetanensis in travellers returning from developing countries. Patients-Nine hundred and seventy eight stool samples were taken from 795 patients returning from developing countries. Methods-Microscopy (iron-haematoxylin stain, SAF concentration, modified acid fast stain) and a commercially available enzyme linked immunosorbent assay (ELISA) kit for the detection of Cryptosporidium antigen in stool. Results-Of the 795 patients in the study, 469 suVered from diarrhoea. Infection with Cyc cayetanensis could be detected in five subjects (1.1%) by acid fast stain, and 13 patients (2.8%) were infected with C parvum. On evaluation, the antigen capture ELISA turned out to be clearly less sensitive for detection of C parvum than microscopy. All patients with either C parvum or Cyc cayetanensis infection suVered from watery diarrhoea. Conclusions-C parvum and Cyc cayetanensis are not major causes of diarrhoea in international travellers. In cases of persistent watery diarrhoea, however, these pathogens should be taken into account in the diVerential diagnosis. (Gut 1997; 41: 801-804)

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CyclosporaSp.: A Coccidian That Causes Diarrhoea In Travellers

Cited by 5 publications

References 9 publications

Cyclospora cayetanensis: a review of an emerging parasitic coccidian

Cyclospora cayetanensis: a review of an emerging parasitic coccidian

Update on Cyclospora cayetanensis , a Food-Borne and Waterborne Parasite

Prevalence of infection with Cryptosporidium parvumand Cyclospora cayetanensis among international travellers

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