penicillin-insensitive pneumococci , of 10 serotypes , which had been isolated in australia and new guinea from healthy carriers and patients with pneumococcal infections , were shown to be relatively resistant to penicillin g , penicillin v , methicillin , cloxacillin , cephaloridine and cephalothin , compared with pneumococci fully sensitive to penicillin g .
C0030842
penicillin
C0030827
penicillin g