Survey of Theileria Parasite Infection in Cattle in Taiwan.

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Abstract
An survey of Theileria parasite infection in cattle in Taiwan was carried out by polymerase chain reaction (PCR). A total of 491 blood samples, 105 from southern area and 386 from northern area, were collected from bovine in 16 different farms. From northern area, Theileria piroplasms could be seen in only 4 of 105 blood samples microscopically. However, when p32/34 genes (encoding immunodominant piroplasm surface proteins) were amplified by PCR, 15 blood samples were detected positive. They were analyzed by using allele-specific primers of 3 allelic forms of p32/34 and all contained C type of T. sergenti. Four blood samples were found infected with both C and B (T. buffeli) type parasites. Examination of 386 blood samples from southern area of Taiwan did not reveal any Theileria parasite microscopically, as well as by PCR amplification.