Question

Diphtheria is caused by

• A. Poisons released by living bacterial cells into the host tissue
• B. Poisons released from dead bacterial cells into the host tissue
• C. Poisons released by virus into the host tissues
• D. Excessive immune response by the host's body

Answer 1

The correct option is A Poisons released by living bacterial cells into the host tissue

Diphtheria is a serious bacterial infection usually affecting the mucous membranes of the nose and throat. The bacterium Corynebacterium diphtheriae causes diphtheria by releasing a poison that can cause grayish membrane to form and coat the inside of the victim's throat. The membrane can cause breathing problems.
Therefore, the correct answer is option A.