all the MBL positive strains detected by double disk synergy was Stenotrophomonas maltophilia ,and the number of them detected by Na2EDTA and 2-mercaptopropionicacid (2-MPA) disk were 4 and 7, respectively.

• 以Na2EDTA和2-MPA为酶抑制剂，用纸片协同法从49株亚胺培南耐药株中分别检测到MBL阳性株4株和7株，均为嗜麦芽窄食单胞菌；