title: [Meningococcal infections in Belgium in 1974].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001530:Belgium; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D008589:Meningococcal Infections / Q000453:epidemiology* / Q000635:transmission; D008875:Middle Aged; D009345:Neisseria meningitidis / Q000302:isolation & purification
vernacular_title: Infections méningococciques en belgique année 1974