title: Trends in meningococcal disease in Italy in 1986.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007558:Italy; D008297:Male; D008585:Meningitis, Meningococcal / Q000453:epidemiology* / Q000382:microbiology; D008889:Military Personnel; D009345:Neisseria meningitidis / Q000145:classification; D012703:Serotyping