加拿大绵羊梅迪-维斯纳病血清阳性率
Seroprevalence of maedi-visna in Canadian sheep.
作者信息
Simard C, Morley R S
机构信息
Health of Animals Laboratory, Agriculture Canada, New Brunswick.
出版信息
Can J Vet Res. 1991 Jul;55(3):269-73.
Abstract
A serological survey of Canadian sheep over one year of age was conducted to estimate the seroprevalence of maedi-visna. An indirect enzyme-linked immunosorbent assay was used. An analysis of 14,047 sera from 286 randomly selected flocks provided an estimate of the seroprevalence of 19% and a mean flock prevalence of 12%. Sixty-three percent of the sampled flocks had one or more seropositive sheep. There appeared to be higher prevalences in sheep in Quebec (40%) and Nova Scotia (27%). An increased prevalence with increased age and flock size was noted.
摘要
对加拿大一岁以上的绵羊进行了血清学调查，以估计梅迪-维斯纳病的血清阳性率。采用间接酶联免疫吸附测定法。对从286个随机选择的羊群中采集的14,047份血清进行分析，得出血清阳性率估计为19%，平均羊群阳性率为12%。63%的抽样羊群中有一只或多只血清阳性绵羊。魁北克省（40%）和新斯科舍省（27%）的绵羊患病率似乎更高。注意到随着年龄和羊群规模的增加，患病率也有所上升。
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