Taylor S M, Mallon T R, Green W P
Veterinary Research Laboratory, Stormont, Belfast.
Vet Rec. 1989 Jan 7;124(1):15-7. doi: 10.1136/vr.124.1.15.
Two groups of parasite-free calves, one of which had been treated with four doses of a homoeopathic oral vaccine for parasitic bronchitis due to Dictyocaulus viviparus and the other with a placebo, were infected at the rate of 25 infective larvae/kg bodyweight 18 days after the final dose. Both groups became severely affected by parasitic bronchitis, with clinical signs starting 13 days after infection. There were no discernible differences between the treated and control groups in their manifestations of resistance to D viviparus or their clinical responses to the disease produced.
两组无寄生虫的犊牛，其中一组用四剂针对由胎生网尾线虫引起的寄生性支气管炎的顺势口服疫苗进行了治疗，另一组用安慰剂进行了治疗，在最后一剂疫苗接种18天后，以每千克体重25条感染性幼虫的剂量进行感染。两组均受到寄生性支气管炎的严重影响，感染后13天开始出现临床症状。在对胎生网尾线虫的抵抗力表现或对所产生疾病的临床反应方面，治疗组和对照组之间没有明显差异。
