[Distribution and biological properties of the agent of diphtheria in variously immunologically structured populations].
D002675:Child, Preschool; D003353:Corynebacterium diphtheriae; D004165:Diphtheria / Q000453:epidemiology* / Q000276:immunology / Q000382:microbiology; D006801:Humans
Rasprostranennost' i biologicheskie svoĭstva vozyuditelia difterii pri razlichnoĭ ĭmmunologicheskoĭ strukture naseleniia.