Carriage of N meningitidis.
D003470:Culture Media; D005260:Female; D006801:Humans; D008297:Male; D008589:Meningococcal Infections; D009305:Nasopharynx / Q000382:microbiology; D009345:Neisseria meningitidis / Q000302:isolation & purification*; D009666:Nose / Q000382:microbiology*; D012141:Respiratory Tract Infections / Q000382:microbiology; D012737:Sex Factors; D012907:Smoking
D003470:Culture Media