Why does diphtheria form a thick throat membrane?
Quick Answer
The bacterium Corynebacterium diphtheriae damages the throat lining and causes dead tissue, fibrin, and inflammatory material to build up into a grayish membrane. That membrane can make breathing dangerous.
The Full Story
Diphtheria is dangerous not just because of local infection but because of a toxin the bacteria produce. The toxin kills cells in the throat and upper airway, and the body’s inflammatory response adds fibrin and debris. The result can be a thick pseudomembrane that may bleed if disturbed. The same toxin can also affect the heart and nervous system, causing serious complications. Diphtheria became much rarer in many countries after widespread vaccination with diphtheria toxoid.
Key Facts
YouTube Angle
Suggested video title for this topic:
"Why does diphtheria make a dangerous throat membrane? It is toxin damage, not just infection."
Was this answer helpful?
Tap a reaction — it helps us pick what to cover next.