Abstract
In recent years, human cyclosporiasis has emerged as an important infection, with large outbreaks in the United States and Canada. Understanding the biology and epidemiology of Cyclospora has been difficult and slow and has been complicated by not knowing the pathogen s origins, animal reservoirs (if any), and relationship to other coccidian parasites. This report provides morphologic and molecular characterization of three parasites isolated from primates and names each isolate: Cyclospora cercopitheci sp.n. for a species recovered from green monkeys, C. colobi sp.n. for a parasite from colobus monkeys, and C. papionis sp.n. for a species infecting baboons. These species, plus C. cayetanensis, which infects humans, increase to four the recognized species of Cyclospora infecting primates. These four species group homogeneously as a single branch intermediate between avian and mammalian Eimeria. Results of our analysis contribute toward clarification of the taxonomic position of Cyclospora and its relationship to other coccidian parasites.
Full Text
The Full Text of this article is available as a PDF (447.8 KB).
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Ford P. L., Duszynski D. W. Coccidian parasites (Apicomplexa: Eimeriidae) from insectivores. VII. Six new species from the hairy-tailed mole, Parascalops breweri. J Parasitol. 1989 Aug;75(4):508–513. [PubMed] [Google Scholar]
- Ford P. L., Duszynski D. W., McAllister C. T. Coccidia (Apicomplexa) from heteromyid rodents in the southwestern United States, Baja California, and northern Mexico with three new species from Chaetodipus hispidus. J Parasitol. 1990 Jun;76(3):325–331. [PubMed] [Google Scholar]
- García-López H. L., Rodríguez-Tovar L. E., Medina-De la Garza C. E. Identification of Cyclospora in poultry. Emerg Infect Dis. 1996 Oct-Dec;2(4):356–357. doi: 10.3201/eid0204.960414. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Herwaldt B. L., Ackers M. L. An outbreak in 1996 of cyclosporiasis associated with imported raspberries. The Cyclospora Working Group. N Engl J Med. 1997 May 29;336(22):1548–1556. doi: 10.1056/NEJM199705293362202. [DOI] [PubMed] [Google Scholar]
- Koumans E. H., Katz D. J., Malecki J. M., Kumar S., Wahlquist S. P., Arrowood M. J., Hightower A. W., Herwaldt B. L. An outbreak of cyclosporiasis in Florida in 1995: a harbinger of multistate outbreaks in 1996 and 1997. Am J Trop Med Hyg. 1998 Aug;59(2):235–242. doi: 10.4269/ajtmh.1998.59.235. [DOI] [PubMed] [Google Scholar]
- Ortega Y. R., Gilman R. H., Sterling C. R. A new coccidian parasite (Apicomplexa: Eimeriidae) from humans. J Parasitol. 1994 Aug;80(4):625–629. [PubMed] [Google Scholar]
- Ortega Y. R., Nagle R., Gilman R. H., Watanabe J., Miyagui J., Quispe H., Kanagusuku P., Roxas C., Sterling C. R. Pathologic and clinical findings in patients with cyclosporiasis and a description of intracellular parasite life-cycle stages. J Infect Dis. 1997 Dec;176(6):1584–1589. doi: 10.1086/514158. [DOI] [PubMed] [Google Scholar]
- Pieniazek N. J., Herwaldt B. L. Reevaluating the molecular taxonomy: is human-associated Cyclospora a mammalian Eimeria species? Emerg Infect Dis. 1997 Jul-Sep;3(3):381–383. doi: 10.3201/eid0303.970319. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Pieniazek N. J., Slemenda S. B., da Silva A. J., Alfano E. M., Arrowood M. J. PCR confirmation of infection with Cyclospora cayetanensis. Emerg Infect Dis. 1996 Oct-Dec;2(4):357–359. doi: 10.3201/eid0204.960415. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Relman D. A., Schmidt T. M., Gajadhar A., Sogin M., Cross J., Yoder K., Sethabutr O., Echeverria P. Molecular phylogenetic analysis of Cyclospora, the human intestinal pathogen, suggests that it is closely related to Eimeria species. J Infect Dis. 1996 Feb;173(2):440–445. doi: 10.1093/infdis/173.2.440. [DOI] [PubMed] [Google Scholar]
- Smith H. V., Paton C. A., Girdwood R. W., Mtambo M. M. Cyclospora in non-human primates in Gombe, Tanzania. Vet Rec. 1996 May 25;138(21):528–528. [PubMed] [Google Scholar]
- Sterling C. R., Ortega Y. R. Cyclospora: an enigma worth unraveling. Emerg Infect Dis. 1999 Jan-Feb;5(1):48–53. doi: 10.3201/eid0501.990106. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Thompson J. D., Higgins D. G., Gibson T. J. CLUSTAL W: improving the sensitivity of progressive multiple sequence alignment through sequence weighting, position-specific gap penalties and weight matrix choice. Nucleic Acids Res. 1994 Nov 11;22(22):4673–4680. doi: 10.1093/nar/22.22.4673. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Yai L. E., Bauab A. R., Hirschfeld M. P., de Oliveira M. L., Damaceno J. T. The first two cases of Cyclospora in dogs, São Paulo, Brazil. Rev Inst Med Trop Sao Paulo. 1997 May-Jun;39(3):177–179. doi: 10.1590/s0036-46651997000300011. [DOI] [PubMed] [Google Scholar]
- Zerpa R., Uchima N., Huicho L. Cyclospora cayetanensis associated with watery diarrhoea in Peruvian patients. J Trop Med Hyg. 1995 Oct;98(5):325–329. [PubMed] [Google Scholar]
- da Silva A. J., Bornay-Llinares F. J., Moura I. N., Slemenda S. B., Tuttle J. L., Pieniazek N. J. Fast and reliable extraction of protozoan parasite DNA from fecal specimens. Mol Diagn. 1999 Mar;4(1):57–64. doi: 10.1016/s1084-8592(99)80050-2. [DOI] [PubMed] [Google Scholar]