KATERYNA KON / SCIENCE PHOTO LIBRARY KATERYNA KON / SCIENCE PHOTO LIBRARY
Corynebacterium diphtheriae, computer illustration. C. diphtheriae is a gram-positive rod-shaped bacterium which causes the disease diphtheria. Diphtheria is characterised by the formation of fibrin-containing membranes on the tonsils and surface of the respiratory tract that can lead to respiratory obstruction (difficulties in breathing). C. diphtheriae also produces a toxin which affects the heart, nervous system and kidneys.
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