title: Diphtheria outbreak--Russian Federation, 1990-1993.
mesh_terms: D002648:Child; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D004165:Diphtheria / Q000453:epidemiology* / Q000517:prevention & control; D015721:Diphtheria-Tetanus-Pertussis Vaccine / Q000008:administration & dosage; D004196:Disease Outbreaks; D006801:Humans; D015994:Incidence; D007223:Infant; D011159:Population Surveillance; D012426:Russia / Q000453:epidemiology
chemical_list: D015721:Diphtheria-Tetanus-Pertussis Vaccine