title: Current status--meningococcal vaccine.
mesh_terms: D001428:Bacterial Vaccines; D006801:Humans; D008585:Meningitis, Meningococcal / Q000517:prevention & control*; D022401:Meningococcal Vaccines; D014611:Vaccination
chemical_list: D001428:Bacterial Vaccines; D022401:Meningococcal Vaccines