Connor R J, Halliwell R W
Veterinary Investigation Centre, Mtwara, Tanzania.
Trop Anim Health Prod. 1987 Aug;19(3):165-72. doi: 10.1007/BF02239713.
In a survey for bovine trypanosomiasis blood smears from 1,617 cattle at 72 sites were examined. Trypanosomes were found in 93 cattle, representing 16% of the cattle in herds in which trypanosomiasis was confirmed. Of the positive cattle 56% had infections with T. congolense, 17% T. vivax and 2.2% T. brucei. Five cattle had mixed infections and in 18 cattle the species was not identified. Sera from 1,352 cattle were tested using microelisa. Ten out of 16 sites, at which no trypanosomes were found in blood smears and at which trypanocides were in use, had over 15% seropositive cattle compared with five of 19 sites at which trypanocides were not in use. It was concluded that the microelisa was a useful aid to the diagnosis of bovine trypanosomiasis and that there is a need for accurate records of drug use and livestock movements to be kept. The serious risk of drug resistant strains of trypanosomes emerging due to the uncontrolled use of trypanocides is emphasised.
在一项关于牛锥虫病的调查中，对来自72个地点的1617头牛的血涂片进行了检查。在93头牛中发现了锥虫，占确诊患有锥虫病牛群中牛的16%。在阳性牛中，56%感染了刚果锥虫，17%感染了活泼锥虫，2.2%感染了布氏锥虫。5头牛有混合感染，18头牛的锥虫种类未鉴定出来。使用微量酶联免疫吸附测定法对1352头牛的血清进行了检测。在16个血涂片未发现锥虫且使用了杀锥虫剂的地点中，有10个地点血清阳性牛超过15%，而在19个未使用杀锥虫剂的地点中，只有5个地点血清阳性牛超过15%。得出的结论是，微量酶联免疫吸附测定法对牛锥虫病的诊断有帮助，并且需要准确记录药物使用情况和牲畜流动情况。强调了由于杀锥虫剂的无节制使用而出现抗药锥虫菌株的严重风险。
