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Mitochondrial Junction Region as Genotyping Marker for Cyclospora cayetanensis
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July 2019
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Source: Emerg Infect Dis. 25(7):1314-1319
[PDF-1.08 MB]
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Alternative Title:Emerg Infect Dis
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Description:Cyclosporiasis is an infection caused by Cyclospora cayetanensis, which is acquired by consumption of contaminated fresh food or water. In the United States, cases of cyclosporiasis are often associated with foodborne outbreaks linked to imported fresh produce or travel to disease-endemic countries. Epidemiologic investigation has been the primary method for linking outbreak cases. A molecular typing marker that can identify genetically related samples would be helpful in tracking outbreaks. We evaluated the mitochondrial junction region as a potential genotyping marker. We tested stool samples from 134 laboratory-confirmed cases in the United States by using PCR and Sanger sequencing. All but 2 samples were successfully typed and divided into 14 sequence types. Typing results were identical among samples within each epidemiologically defined case cluster for 7 of 10 clusters. These findings suggest that this marker can distinguish between distinct case clusters and might be helpful during cyclosporiasis outbreak investigations.
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Pubmed ID:31211668
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Pubmed Central ID:PMC6590752
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Document Type:
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Volume:25
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Issue:7
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