title: The first survey of Theileria orientalis infection in Mongolian cattle.
abstract: In the present study, we have surveyed the presence of a bovine Theileria protozoan, Theileria orientalis, in Mongolian cattle and engorging tick populations from selected provinces and districts in Mongolia. The percentages of infection in the cattle and ticks ranged from 8.8 to 66.6 and from 3.7 to 73.3, respectively, on a per district basis. The genetic diversity of T. orientalis isolates was also studied, based on the protozoan gene encoding a major piroplasm surface protein (MPSP). At least five genotypes (types 1, 3, 5, 7, and N-3) of T. orientalis were found to be circulating among the Mongolian cattle and tick populations. In particular, types 3 and N-3 were common in most of the districts examined, while a strong geographical relationship among the genotypes was not detected in the present study. This is the first epidemiological report describing the presence of T. orientalis infection in Mongolian cattle.
authors.affiliation: National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan.
authors.forename: Khukhuu
authors.initials: K
authors.lastname: Altangerel
authors.forename: Badgar
authors.initials: B
authors.lastname: Battsetseg
authors.forename: Banzragch
authors.initials: B
authors.lastname: Battur
authors.forename: Thillaiampalam
authors.initials: T
authors.lastname: Sivakumar
authors.forename: Enkhbaatar
authors.initials: E
authors.lastname: Batmagnai
authors.forename: Galsandorj
authors.initials: G
authors.lastname: Javkhlan
authors.forename: Bumduuren
authors.initials: B
authors.lastname: Tuvshintulga
authors.forename: Ikuo
authors.initials: I
authors.lastname: Igarashi
authors.forename: Kotaro
authors.initials: K
authors.lastname: Matsumoto
authors.forename: Hisashi
authors.initials: H
authors.lastname: Inokuma
authors.forename: Naoaki
authors.initials: N
authors.lastname: Yokoyama
mesh_terms: D000818:Animals; D002417:Cattle; D016054:DNA, Protozoan / Q000235:genetics; D014644:Genetic Variation; D005838:Genotype; D008986:Mongolia / Q000453:epidemiology; D010802:Phylogeny; D016794:Theileria / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification*; D013801:Theileriasis / Q000453:epidemiology / Q000469:parasitology*; D013987:Ticks / Q000469:parasitology
chemical_list: D016054:DNA, Protozoan