title: [Carrier state and its significance].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002353:Carrier State / Q000453:epidemiology*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007564:Japan; D008297:Male; D008875:Middle Aged; D012480:Salmonella Infections / Q000453:epidemiology; D014435:Typhoid Fever / Q000453:epidemiology