Pneumococci insensitive to penicillin.
D000667:Ampicillin / Q000494:pharmacology*; D001315:Australia; D002509:Cephaloridine / Q000494:pharmacology; D002512:Cephalothin / Q000494:pharmacology; D006801:Humans; D008712:Methicillin / Q000494:pharmacology*; D009512:New Guinea; D010400:Penicillin G / Q000494:pharmacology*; D010403:Penicillin Resistance; D011008:Pneumococcal Infections / Q000382:microbiology; D013296:Streptococcus pneumoniae / Q000187:drug effects*
D000667:Ampicillin; D002509:Cephaloridine; D010400:Penicillin G; D008712:Methicillin; D002512:Cephalothin