an apparently unique strain of staphylococcus aureus , resistant to penicillins ( including penicillinase-resistant penicillins ) , cephalosporins , cephamycins , aminoglycosides ( all but amikacin ) , tetracycline , lincomycin , erythromycin , and , in a lesser percentage , to chloramphenicol as well , was isolated on more than 100 occasions over a 20-month period in a general hospital in san sebastian , spain .
C3536856
cephalosporins
C0007736
cephamycins