通过协同凝集和沉淀法对乳腺炎链球菌进行比较分组。
Comparative grouping of mastitis Streptococci by means of co-agglutination and precipitation.
作者信息
Saxegaard F
出版信息
Acta Vet Scand. 1977;18(4):509-14. doi: 10.1186/BF03548414.
Two hundred bovine mastitis streptococcal strains belonging to groups B, C, E, G and L were tested comparatively by means of the co-agglutination and precipitation technique. Identical results were obtained with the two tests in 191, or 95.5 %, of the strains. Six strains, which could not be grouped by co-agglutination, proved to belong to group B when grouped by precipitation. On the other hand, one strain which proved to belong to group G and two strains to group L when grouped by co-agglutination, could not be grouped by precipitation. Some cross-reactivity was observed between groups A and C, B and G, B and L. Only a few L strains showed marked cross-reactivity which was not easily distinguished from specific reactions. However, the cross-reactivity ought to be eliminated by dilution or adsorption. Using the precipitation test as a supplementary method, the easy and rapid co-agglutination test was found to be a suitable procedure for routine grouping of mastitis streptococci.
采用协同凝集和沉淀技术对200株属于B、C、E、G和L群的牛乳腺炎链球菌菌株进行了比较测试。在191株（95.5%）菌株中，两种测试获得了相同的结果。6株用协同凝集无法分组的菌株，用沉淀法分组时被证明属于B群。另一方面，1株用协同凝集分组时被证明属于G群，2株属于L群的菌株，用沉淀法无法分组。在A群和C群、B群和G群、B群和L群之间观察到一些交叉反应。只有少数L群菌株表现出明显的交叉反应，难以与特异性反应区分开来。然而，交叉反应可通过稀释或吸附消除。将沉淀试验作为补充方法，发现简便快速的协同凝集试验是乳腺炎链球菌常规分组的合适方法。
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