论文部分内容阅读
虽然分子遗传学的研究业已表明布氏菌属由单独种所组成,该属目前分类为6个名称种,这些种与它们自然选择的宿主关系十分密切。其中引起世界性流行及人和家畜发病最重要的3种,即羊种布氏菌、牛种布氏菌和猪种布氏菌—依据其培养、生化和血清学特征后2种布氏菌又分为生物型,但羊种布氏菌仅依据表面抗原的血清学特性而划分为生物型。事实上,公认的羊种布氏菌3个亚型是血清型而不是生物型。若干年来已认识到该鉴定系统不能充分反映存在于羊种布氏菌许多株之间存在的差异。因此,Arnaud—Bosq
Although studies in molecular genetics have shown that the genus Brevibacterium consists of individual species, the genus is currently classified into six species of species that are closely related to their natural selection of hosts. Which caused the worldwide epidemic and the incidence of human and livestock the three most important, namely, Brevibacterium brucei, Brucella bovinum and Brucella bovinum - based on their culture, biochemical and serological characteristics of two kinds of Brucella Also divided into biotypes, but the species Brevibacterium only based on the surface antigen serological characteristics and divided into biotypes. In fact, three subtypes of the recognized species of Brevibacterium brevis are serotypes rather than biotypes. It has been recognized for several years that this identification system does not adequately reflect the differences that exist among many strains of Brucella burgdorferi. Therefore, Arnaud-Bosq