All the 72 strains were resistant to erythromycin, gentamicin, amikacin, penicillin, ampicillin/sulbactam, cefoxitin and ampicillin.

• 对红霉素、庆大霉素、阿米卡星、青霉素、氨苄西林／舒巴坦、头孢西丁、氨苄西林均耐药。