in a patient recently operated for an abdominal gun wound , and given gentamicin-cephalosporin ( cefoxitin for one day , then moxalactam ) for 11 days , treatment failed as a result of emergence of a e. cloacae variant resistant to beta-lactams only , i.e . carbenicillin , mezlocillin , cefamandole ( cfm ) , cefoperazone ( cpz ) , cefotaxim ( ctx ) and moxalactam ( mox ) .
C3536856
cephalosporin
C0007557
cefoxitin