drugs used and the isolation frequency of resistant strains were : sulfanilamide ( sa ) 96 % , streptomycin ( sm ) 85 % , tetracycline ( tc ) 82 % , fosfomycin ( fom ) 76 % , chloramphenicol ( cp ) 51 % , trimethoprim ( tmp ) 46 % , ampicillin ( abpc ) 45 % , nalidixic acid ( na ) 6 % , kanamycin ( km ) 5 % , cephaloridine ( cer ) 4 % , gentamicin ( gm ) 0 % , amikacin ( amk ) 0 % , colistin ( cl ) 0 % , norfloxacin ( nflx ) 0 % .
C0022487
kanamycin
C0002499
amikacin