Little information is available regarding animal hosts and environmental survival time for Cyclospora cayetanensis, a microscopic intestinal protozoan parasite. Its oocysts, however, tend to be resistant to adverse conditions and have been known to survive for long periods of time if kept moist. Oocysts must be consumed for the development of cyclosporiasis, a gastrointestinal infection caused by the parasite and are only shed in the fecal matter of an infected host. Thus, fecal contamination of food, water, or any substance that someone may have oral contact with is the only method of transmission.
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What are sources of Cyclospora cayetanensis contamination?
Last Updated: August 31, 2007
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