Diphtheria is an acute disease caused by toxin-producing strains of Corynebacterium diphtheriae (in some cases also by Corynebacterium ulcerans) bacteria, that is known to colonise mucous membranes. 
            
Davica je akutna bolezen, ki jo povzročajo toksikogeni sevi bakterije Corynebacterium diphtheriae (v nekaterih primerih tudi Corynebacterium ulcerans), ki se naselijo na sluznici. 
            