ESBLs-producing strains were confirmed by the NCCLS phenotypic confirmatory test using disc agar diffusion method (Kirby-Bauer diffusion test).

• 方法1对临床分离的耐药菌株进行纸片扩散法ESBL表型筛选,将筛选出68株ESBL表型阳性菌重新进行生化鉴定、药敏实验。