Ａ组乙型溶血性链球菌（ＧＡＳ）不但是小儿急性上呼吸道感染最常见的致病菌，而且易引发急性肾小球肾炎、风湿热等疾病，本研究分析了健康儿童咽部Ａ组乙型溶血性链球菌携带状况，并探讨其与临床的相关关系。１　对象与方法１．１　对象　所有受检者均为幼儿园之健康儿童，年 Group A hemolytic streptococcus (GAS) is not only the most common pathogenic bacteria in children with acute upper respiratory tract infection, but also easily lead to acute glomerulonephritis, rheumatic fever and other diseases, this study analyzed the healthy children A group B Hemolytic streptococcus carrying status, and to explore its correlation with the clinical. 1 Subjects and Methods 1.1 Subjects All subjects are healthy children in kindergarten, year