Which type of vaccine protect against Diphtheria?

Correct answer: (c) Toxoid

Explanation

Diphtheria is caused by Corynebacterium diphtheriae, whose harm comes from a powerful exotoxin.

A toxoid vaccine uses the inactivated toxin to trigger immunity, as in DTaP/Td vaccines.

Live-attenuated, viral vector and mRNA types are not used for diphtheria protection.