CJCP     2024 26 (1):  92-97    ISSN: 1008-8830  CN: 43-1301/R Research progress on the mechanism of β-lactam resistance in group A Streptococci in vivo GUO Meng-Yang, YAO Kai-Hu National Center for Children's Health/Beijing Children's Hospital, Capital Medical University/Laboratory of Microbiology, Beijing Pediatric Research Institute/National Clinical Medical Research Center for Respiratory Diseases/Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing 100045, China (Yao K-H, Email: yaokaihu@bch.com.cn) Received: 2023-07-03  Revised: null  Online: null Supporting info null