摘要
Abstract
Porcine streptococcosis ,a zoonotic disease caused by Streptococcus suis ,not only does great harm to the development of pig industry ,but also is an important threat to public health security .Now this disease has caught public attention .In recent years ,the detectioin and identification of new virulence factors has become the focus of research at home and abroad .This paper focused on the relevant virulence factors of Streptococcus suis , such as capsular polysaccharide (CPS ) , muramidase-released protein (MRP) ,extracellular protein factor(EF) ,suilysin(SLY) and new virulence-associated gene sequences and proteins found lately ,containing capsular sialic acid ,Cbp40 ,VirA ,pgd A ,Trag ,hemolsis-related gene , CiaRH ,CcpA ,TroA .This paper summarized the effects of these virulence factors on the mechanisms in pathogenesis of Streptococcus suis ,providing a theoretical basis for the treatments and development of vac-cine .关键词
猪链球菌/毒力因子/致病机制Key words
Streptococcus suis/virulence factor/pathogenic mechanism分类
农业科技
