Cyclospora cayetanensis: biology, environmental distribution and transfer
Cyclospora cayetanensis: biology, environmental distribution and transfer
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DOI：
10.1590/s0120-41572011000100016
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发表时间：
2011-03-01
期刊：
影响因子：
--
通讯作者：
Barrios, Fernando
中科院分区：
文献类型：
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作者：
Chacín-Bonilla, Leonor;Barrios, Fernando
圆孢子虫（Cyclospora cayetanensis）是一种顶复门原虫，已成为一种在全球范围内引起地方性或流行性腹泻疾病的重要病原体。在工业化国家，这种寄生虫已被确认为多起腹泻疾病暴发的病原体，这些暴发大多与从流行地区进口的农产品有关。在发展中国家，人类圆孢子虫病分布广泛。在普通人群中，感染率从0%到41.6%均有描述。然而，圆孢子虫的流行病学、生物学和生态学尚未完全了解。其生活周期尚未完全明确，尽管它似乎需要单一的人类宿主来完成。动物作为该寄生虫自然宿主的作用仍有待确定。关于圆孢子虫的环境分布和传播媒介的信息很少。受污染的水、食物或土壤可能是该寄生虫传播的媒介。在圆孢子虫的认知方面仍然存在的重大不确定性凸显了在多个领域继续研究的必要性，包括其基础生物学和环境分布。
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.