title: Relapsing pneumococcal meningitis: isolation of an organism with decreased susceptibility to penicillin G.
mesh_terms: D002675:Child, Preschool; D006801:Humans; D008297:Male; D008586:Meningitis, Pneumococcal / Q000188:drug therapy / Q000382:microbiology*; D010400:Penicillin G / Q000494:pharmacology / Q000627:therapeutic use; D010403:Penicillin Resistance; D012008:Recurrence; D013296:Streptococcus pneumoniae / Q000187:drug effects / Q000302:isolation & purification*
chemical_list: D010400:Penicillin G