all these strains have been tested for susceptibility to the following antibiotics : penicillin g , ampicillin , tetracycline , spectinomycin , erythromycin , doxycycline , kanamycin , rifampin , chloramphenicol , gentamicin , cephalothin , cephaloridine , lincomycin and clindamycin .
C0030827
penicillin g
C0002680
ampicillin