title: Diphtheria immunity in Victoria.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001315:Australia; D002648:Child; D002675:Child, Preschool; D004165:Diphtheria / Q000276:immunology* / Q000517:prevention & control; D006306:Health Surveys; D006801:Humans; D007110:Immunity, Active; D007114:Immunization; D008875:Middle Aged