diphtheria [diphtherias] (infectious disease of the upper respiratory tract) noun [UK: dɪf.ˈθɪə.rɪə] [US: ˌdɪf.ˈθɪ.riə]
difterianoun {f}The toxin that causes diphtheria is produced by a normally benign bacterium when infected with a certain virus. = La toxina que causa la difteria es producida por una bacteria normalmente benigna cuando es infectada por un cierto virus.