title: Increased meningococcal carrier rate after tonsillectomy.
mesh_terms: D000293:Adolescent; D005260:Female; D006801:Humans; D008297:Male; D009345:Neisseria meningitidis / Q000276:immunology / Q000302:isolation & purification*; D010614:Pharynx / Q000382:microbiology*; D014068:Tonsillectomy