Strandström H, Veijalainen P, Berger R, Tuomi J
Acta Vet Scand. 1972;13(3):332-9. doi: 10.1186/BF03547051.
Trypanosoma theileri was isolated by the blood culture method from a leukotic cow in extremis. The parasite could be maintained along with leukocytes with weekly changes of culture medium up to 6 months. In connection with a subsequent transmission experiment a cow, not inoculated with trypanosomes but kept in the same shelter as the inoculated one, commenced to be positive for T. theileri in its blood cultures. This cow had a long history of lymphocytosis but showed no signs of leukosis when slaughtered. The significance of the findings is discussed from the point of view of false positive diagnosis of bovine leukosis and the possible role of trypanosome in the etiology of leukosis.
通过血液培养法从一头濒死的患白血病奶牛体内分离出了泰勒氏锥虫。该寄生虫可与白细胞一起培养，每周更换培养基，可维持培养长达6个月。在随后的传播实验中，一头未接种锥虫但与接种锥虫的奶牛饲养在同一畜舍的奶牛，其血液培养物中开始出现泰勒氏锥虫阳性。这头奶牛有长期淋巴细胞增多病史，但屠宰时未表现出白血病症状。从牛白血病假阳性诊断的角度以及锥虫在白血病病因学中可能的作用对这些发现的意义进行了讨论。
