Lilenbaum W, Dos Santos M R
Departamento de Microbiologia e Parasitologia, Universidade Federal Fluminense, Rio de Janeiro, Brasil.
Rev Latinoam Microbiol. 1995 Apr-Jun;37(2):87-92.
Four hundred and five serum samples were drawn from cows with reproductive problems which were not vaccinated against leptospirosis from 21 dairy farms. Three distinct geographic regions were determined and the farms were also classified considering the production system, based on technological, zootechnical and sanitary resources. A total of 277 positive reactions were observed, corresponding to 68.39% of the samples. The predominant serovar was hardjo, reactive on 85 samples (20.98%), predominant on nine farms and observed on 17 farms (80.95%). It was observed the predominance of hardjo in all studied regions and on properties classified as type "A" (22 samples) and type "B" (49 samples). The role of this serovar on bovine leptospirosis in Brazil compared with other countries is discussed.
从21个奶牛场未接种钩端螺旋体疫苗且患有繁殖问题的奶牛身上采集了405份血清样本。确定了三个不同的地理区域,并根据技术、畜牧和卫生资源,按照生产系统对农场进行了分类。共观察到277个阳性反应,占样本的68.39%。主要血清型为哈德乔,在85个样本(20.98%)中呈反应性,在9个农场中占主导地位,在17个农场中观察到(80.95%)。在所有研究区域以及分类为“A”型(22个样本)和“B”型(49个样本)的养殖场中均观察到哈德乔血清型占优势。本文讨论了该血清型在巴西牛钩端螺旋体病中与其他国家相比所起的作用。