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Biomédica
versão impressa ISSN 0120-4157versão On-line ISSN 2590-7379
Resumo
CHACIN-BONILLA, Leonor e BARRIOS, Fernando. Cyclospora cayetanensis: biology, environmental distribution and transfer. Biomédica [online]. 2011, vol.31, n.1, pp.132-144. ISSN 0120-4157.
Cyclospora cayetanensis is an apicomplexan protozoan that has emerged as an important pathogen causing endemic or epidemic diarrheal disease worldwide. In industrialized countries, the parasite has been recognized as the causative agent of several outbreaks of diarrheal illness mostly associated with produce imported from endemic areas. In developing countries, human cyclosporosis is widely distributed. Infection rates from 0% to 41.6% have been described in the general population. However, the epidemiology, biology, and ecology of C. cayetanensis are not fully understood. The life cycle is not completely characterized, although it appears to require a single human host to be accomplished. The role of animals as natural reservoirs of the parasite remains to be determined. Little information is available concerning the environmental distribution and vehicles of transmission of C. cayetanensis. Contaminated water, foods or soil can be vehicles of spread of the parasite. The significant uncertainties that remain in the knowledge of C. cayetanensis highlight the need for continuing research in several areas, including its basic biology and environmental distribution.
Palavras-chave : Cyclospora; cyclosporosis; biology; ecology; review.