E group (2/5), C group (2/5) and D group (1/5) were obtained through bacteria cultivation, biochemical test and lancefield group A-G.

• 经细菌分离培养、生化试验及兰氏分群A-G诊断试剂鉴定，分离出E群链球菌2株，C群链球菌2株，D群链球菌1株。