Question

Diphtheria is due to

• A. Poison released by living bacteria
• B. Poison released by dead bacteria
• C. Poison released by virus
• D. Excessive immune response

Answer 1

The correct option is A Poison released by living bacteria

Diphtheria is a serious bacterial infection that affects the mucous membranes of the throat and nose. It is caused by bacterium Corynebacterium diphtheriae. This bacteria release endotoxin called as diphtheria toxin. Diphtheria toxin is a poison released by living bacteria inside the cell. Symptoms of the disease include fever, sore throat, swollen lymph nodes, difficulty swallowing, coughing.

Thus, the correct answer is 'Poison released by living bacteria.'