Letter: Immunity to tetanus in Victoria.
D001315:Australia; D002648:Child; D002675:Child, Preschool; D004165:Diphtheria / Q000276:immunology; D006801:Humans; D007112:Immunity, Maternally-Acquired; D007114:Immunization; D007223:Infant; D013742:Tetanus / Q000276:immunology*