犊牛沙门氏菌病的流行病学：市场和传播媒介的作用。
The epidemiology of Salmonella in calves: the role of markets and vehicles.
作者信息
Wray C, Todd N, McLaren I M, Beedell Y E
机构信息
Central Veterinary Laboratory, Weybridge, Surrey.
出版信息
Epidemiol Infect. 1991 Dec;107(3):521-5. doi: 10.1017/s0950268800049219.
Environmental contamination has been shown to be an important aspect of the epidemiology of salmonellosis in calves. Markets and transport vehicles are important links in the calf marketing chain and these were investigated to determine the level of salmonella contamination. Salmonellas were isolated from 7 of the 14 markets surveyed, with 31 of 838 samples (3.7%) being positive. Nine different salmonella serotypes, of which the commonest was Salmonella typhimurium, were isolated. Four different phage types of S. typhimurium were detected, the commonest being DT204C. Salmonellas were isolated from 22 of the 107 vehicles (20.6%) examined before washing and from 4 of the 62 vehicles (6.5%) examined after cleaning. Twelve different salmonella serotypes were isolated, of which the most frequent was S. typhimurium. The commonest of the six different S. typhimurium phage types was DT204C. These results indicate that improved cleaning and disinfection routines both for vehicles and markets are necessary to control salmonellosis in calves.
环境污染已被证明是犊牛沙门氏菌病流行病学的一个重要方面。市场和运输车辆是犊牛销售链中的重要环节，对其进行了调查以确定沙门氏菌污染水平。在所调查的14个市场中，有7个市场分离出了沙门氏菌，838份样本中有31份（3.7%）呈阳性。分离出了9种不同的沙门氏菌血清型，其中最常见的是鼠伤寒沙门氏菌。检测到鼠伤寒沙门氏菌的4种不同噬菌体类型，最常见的是DT204C。在清洗前检查的107辆车辆中，有22辆（20.6%）分离出了沙门氏菌，在清洗后检查的62辆车辆中，有4辆（6.5%）分离出了沙门氏菌。分离出了12种不同的沙门氏菌血清型，其中最常见的是鼠伤寒沙门氏菌。6种不同的鼠伤寒沙门氏菌噬菌体类型中最常见的是DT204C。这些结果表明，为控制犊牛沙门氏菌病，必须改进车辆和市场的清洁和消毒程序。
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