Cyclospora cayetanensis in Three Populations at Risk in Guatemala

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Epidemiologic studies of Cyclospora cayetanensis in Guatemala.

In 1996 and 1997, cyclosporiasis outbreaks in North America were linked to eating Guatemalan raspberries. We conducted a study in health-care facilities and among raspberry farm workers, as well as a case-control study, to assess risk factors for the disease in Guatemala. From April 6, 1997, to March 19, 1998, 126 (2.3%) of 5, 552 surveillance specimens tested positive for Cyclospora; prevalenc...

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Cylospora cayetanensis, an emerging parasitic pathogen of human is being increasingly recognized throughout the world, however the means of transmission and the possibility of a reservoir host remain an enigma. A longitudinal study on cyclosporiasis in different parts of Nepal was carried out from April, 1995 until November, 2000. Fecal specimens were collected from symptomatic and asymptomatic...

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Cyclospora in Guatemala: further considerations.

We are pleased to learn that researchers have continued to study the epidemiology of Cyclospora cayetanensis in Guatemala (8). Many questions remain that can only be answered through systematic epidemiologic investigations. Nevertheless, several features of cyclosporiasis have been consistently reported: marked seasonality, high prevalence in children younger than 15 years compared with that in...

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Intervening transcribed spacer region 1 variability in Cyclospora cayetanensis.

Cyclospora cayetanensis is an apicomplexan protozoan parasite which has emerged as an important cause of epidemic and endemic diarrhea. Water-borne as well as food-borne outbreaks have occurred, including a large number of U.S. cases associated with raspberries imported from Guatemala. Molecular markers exist for tracing the epidemiology of many of the bacterial pathogens associated with water-...

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Human Challenge Pilot Study with Cyclospora cayetanensis

We describe a pilot study that attempted to infect human volunteers with Cyclospora cayetanensis. Seven healthy volunteers ingested an inoculum of Cyclospora oocysts (approximately 200-49,000 oocysts). The volunteers did not experience symptoms of gastroenteritis, and no oocysts were detected in any stool samples during the 16 weeks volunteers were monitored.

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ژورنال

عنوان ژورنال: Journal of Clinical Microbiology

سال: 2001

ISSN: 0095-1137,1098-660X

DOI: 10.1128/jcm.39.8.2951-2953.2001