The drug sensitivity results showed that they were highly resistant to penicillin and cephalosporins,lower to erythromycin,chloramphenical, gentamicin and lincomycin.

• 对青霉素、头孢类抗生素高度耐药，对红霉素、氯霉素、庆大霉素、林可霉素呈低度耐药。