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  • Title: Molecular prevalence and genetic diversity of bovine Theileria orientalis in Myanmar.
    Author: Bawm S, Shimizu K, Hirota J, Tosa Y, Htun LL, Maw NN, Thein M, Kato H, Sakurai T, Katakura K.
    Journal: Parasitol Int; 2014 Aug; 63(4):640-5. PubMed ID: 24786731.
    Abstract:
    Theileria orientalis is a causative agent of benign theileriosis in cattle and distributed in mainly Asian countries. In the present study, we examined the prevalence of T. orientalis infection by PCR based on the major piroplasm surface protein gene (MPSP) sequences in cattle in Myanmar, followed by phylogenetic analysis of the MPSP genes. The MPSP gene was amplified in 258 of 713 (36.2%) cattle blood DNA samples collected from five cities in different geographical regions of Myanmar. Phylogenetic analysis of MPSP sequences from 54 T. orientalis-positive DNA samples revealed the presence of six allelic genotypes, including Types 1, 3, 4, 5, 7, and N-3. Types 5 and 7 were the predominant types detected. Sequences of the MPSP genes detected in Myanmar were closely related to those from Thailand, Vietnam or Mongolia. These findings suggest that movement of animals carrying T. orientalis parasites between Southeast Asian countries could be a reason for the similar genotype distribution of the parasites in Myanmar.
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