Journal
PARASITOLOGY RESEARCH
Volume 114, Issue 5, Pages 1811-1816Publisher
SPRINGER
DOI: 10.1007/s00436-015-4367-5
Keywords
Cyclospora; Cyclospora macacae; Rhesus monkeys; SSU rRNA gene
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Funding
- National Natural Science Foundation of China [31425025, 31302078]
- China Postdoctoral Science Foundation [2014 M560310]
- Open Funding Project of the State Key Laboratory of Veterinary Etiological Biology, Lanzhou, China [SKLVEB2014KFKT008]
- Fundamental Research Funds for the Central Universities, China
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Cyclospora spp. in nonhuman primates are most closely related to Cyclospora cayetanensis, an emerging human pathogen causing outbreaks of cyclosporiasis in North America. Studies thus far indicate the possible existence of host specificity in Cyclospora spp. In this study, 411 fecal specimens from free-range rhesus monkeys (Macaca mulatta) were collected and examined for Cyclospora by sequence analysis of the small subunit rRNA gene. A novel Cyclospora species was identified in 28 (6.8 %) specimens and named Cyclospora macacae based on morphologic and molecular characterizations. The oocyst of C. macacae is spherical and measures 8.49 +/- 0.55 x 8.49 +/- 0.49 mu m in diameter. Phylogenetic analysis grouped this species together with the other four Cyclospora species infecting primates, including C. cayetanensis in humans, forming a monophyletic group closely related to avian Eimeria species. In addition, C. cayetanensis was detected in one specimen, although whether rhesus monkeys can serve as a natural reservoir host of C. cayetanensis needs further investigation.
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