title: Expanded programme on immunization. Outbreak of diphtheria.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D004165:Diphtheria / Q000453:epidemiology* / Q000517:prevention & control; D004168:Diphtheria Toxoid; D004196:Disease Outbreaks / Q000517:prevention & control / Q000706:statistics & numerical data; D006801:Humans; D007115:Immunization Schedule; D015994:Incidence; D007223:Infant; D008875:Middle Aged; D014586:USSR / Q000453:epidemiology; D014611:Vaccination
chemical_list: D004168:Diphtheria Toxoid