From the Expanded Programme on Immunization (EPI) database: diphteria.
D001208:Asia; D001211:Asia, Western; D019049:Developed Countries; D003906:Developing Countries; D004165:Diphtheria; D004194:Disease; D004196:Disease Outbreaks; D005060:Europe; D005061:Europe, Eastern; D007239:Infections; D012426:Russia
Asia; Bacterial And Fungal Diseases; Developed Countries; Developing Countries; Diphtheria--prevention and control; Diseases; Eastern Europe; Epidemics; Europe; Infections; Russia; Western Asia