Diphtheria is caused by
A. poison released by virus into the host tissues
B. poisons released by dead bacterial cells into the host tissues
C. poisons released by living bacterial cells into the host tissues
D. excessive immune response by host body
Answer:C
Diphtheria is caused by
A. poison released by virus into the host tissues B. poisons released by dead bacterial cells into the host tissues C. poisons released by living bacterial cells into the host tissues D. excessive immune response by host body