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无乳链球菌是引起链球菌病的重要致病菌,具有广泛的宿主感染性,既能感染人类引起新生儿脑膜炎,感染奶牛引起乳腺炎,又能引起鱼类链球菌病。近年来罗非鱼感染无乳链球菌的情况越来越严重,给全世界的罗非鱼养殖业造成极大的损失,我国南方地区近年来也出现了严重的罗非鱼链球菌病的暴发流行。本文对无乳链球菌的病原特征、毒力因子、对罗非鱼的感染情况,以及对人及哺乳类动物的致病性等方面进行综述,旨在探讨人源性无乳链球菌与罗非鱼源性无乳链球菌之间的联系,以及感染罗非鱼的无乳链球菌对人类的致病作用,同时为我国罗非鱼链球菌病的防控提供科学依据。
Streptococcus agalactiae is an important pathogen causing streptococcal disease, with a wide range of host infectivity, both in humans can cause neonatal meningitis, infection of dairy cows cause mastitis, but also cause fish streptococcal disease. In recent years, tilapia infected with Streptococcus agalactiae is more and more serious, which has caused great losses to tilapia farming industry all over the world. In southern China, serious tilapia streptococcal disease outbreaks also occurred in recent years popular. This article reviews the pathogenic features, virulence factors, the infection of tilapia and the pathogenicity to human and mammals of Streptococcus agalactiae, and aims to explore the relationship between human-derived Streptococcus agalactiae and Luo Non-fish-derived Streptococcus agalactiae, as well as the pathogenic effect of Streptococcus agalactiae infected by tilapia on humans. At the same time, it provided a scientific basis for prevention and control of tilapia in China.