| epidemiology of cyclospora cayetanensis infection in san carlos island, venezuela: strong association between socio-economic status and infection. | the epidemiology of cyclospora cayetanensis is not well understood. few community-based studies have addressed this issue. a study was conducted to determine the prevalence and risk factors for cyclosporiasis in san carlos island, venezuela. a sample of 515 subjects (mean+/-sd: 21.4+/-17.8 years) was surveyed. for identification of the parasite, stools were examined with modified ziehl-neelsen carbolfuchsin staining of formalin-ether concentrates. infections with cyclospora (43 of 515, 8.3%) wer ... | 2007 | 17655898 |