[The existence of strains of Meningococcus resistant to penicillin].
D006801:Humans; D008585:Meningitis, Meningococcal / Q000188:drug therapy*; D009345:Neisseria meningitidis / Q000187:drug effects*; D010403:Penicillin Resistance
Existencia de cepas de meningococo resistente a la penicilina.