[Epidemiological importance of nontoxic (avirulent) strains of diphtheria in patients and carriers].
D004165:Diphtheria / Q000635:transmission*; D004644:Emotions; D006579:Heterozygote; D006801:Humans; D013180:Sprains and Strains
DIPHTHERIA/transmission
Epidemiologicheskoe znachenie bol'nykh i nositeleí netoksigennykh (avirulentnykh) shtammov difteriinogo mikroba.