A new coccidian parasite (Apicomplexa: Eimeriidae) from humans

Y. R. Ortega, R. H. Gilman, C. R. Sterling

Research output: Contribution to journalArticlepeer-review

134 Scopus citations


A new coccidian parasite has been found in stool specimens of humans with and without diarrhea. The oocyst of this parasite measures 8.6 μm in diameter (7.7-9.9 μm), with ovoid sporocysts 4.0 x 6.3 (3.3-4.4 x 5.5-7.1) μm. Each oocyst has 2 sporocysts and each sporocyst contains 2 sporozoites. Based on these characteristics and the structures observed by electron microscopy, this parasite has been classified in the genus Cyclospora. We propose the name Cyclospora cayetanensis n. sp. for this new human parasite.

Original languageEnglish (US)
Pages (from-to)625-629
Number of pages5
JournalJournal of Parasitology
Issue number4
StatePublished - 1994
Externally publishedYes

ASJC Scopus subject areas

  • Parasitology
  • Ecology, Evolution, Behavior and Systematics


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