[Principal tasks of epidemiologic supervision over diphtheria in the stage of sporadic incidence].
D000293:Adolescent; D002353:Carrier State / Q000453:epidemiology; D002648:Child; D004165:Diphtheria / Q000453:epidemiology* / Q000517:prevention & control; D006801:Humans; D014586:USSR
Osnovnye zadachi épidemiologicheskogo nadzora za difterieĭ na étape sporadicheskoĭ zabolevaemosti.