Joyner L P, Donnelly J, Huck R A
Equine Vet J. 1981 Apr;13(2):103-6. doi: 10.1111/j.2042-3306.1981.tb04127.x.
The results of complement fixation (CF) test for equine piroplasmosis on sera from horses destined for international movement from Great Britain and Ireland are presented and analysed. No horses born and continuously resident in the British Isles were found carrying CF antibodies to either Babesia equi or B caballi. Positive animals were found to have association with the following countries where known tick vectors occur: Spain, Portugal, Belgium, France, Poland, USSR and Arabian Gulf countries. Data on the persistence of CF antibodies in animals subjected to repeated testing showed that some animals lost their CF titre within a few months of their first test while others retained a titre for periods up to 13 months of B caballi and 28 months for B equi. Some individuals regained titres on subsequent tests after becoming negative and the results suggest that removal from exposure to infection or, even, treatment does not necessarily eliminate a CF titre within a predictable time limit.
本文展示并分析了对准备从英国和爱尔兰进行国际运输的马匹血清进行马焦虫病补体结合（CF）试验的结果。未发现出生并一直生活在不列颠群岛的马匹携带针对马巴贝斯虫或驽巴贝斯虫的CF抗体。发现阳性动物与已知存在蜱传播媒介的以下国家有关联：西班牙、葡萄牙、比利时、法国、波兰、苏联和阿拉伯海湾国家。对接受重复检测的动物体内CF抗体持久性的数据显示，一些动物在首次检测后的几个月内CF滴度消失，而另一些动物对驽巴贝斯虫的滴度保持长达13个月，对马巴贝斯虫的滴度保持长达28个月。一些个体在检测结果呈阴性后，后续检测又重新出现滴度，结果表明，即使脱离感染源或接受治疗，也不一定能在可预测的时间内消除CF滴度。
