lately , strains of e. coli , klebsiella , enterobacter , serratia , proteus and pseudomonas resistant to many antimicrobials ( ampicillin , carbenicillin , cephalothin , chloramphenicol , gentamycin , tobramycin , sisomycin , neomycin , paromomycin , kanamycin , streptomycin , spectinomycin , tetracycline , sulphonamides ) were isolated from patients of the university hospital in zuerich .
C0017436
gentamycin
C0037209
sisomycin