Which form of pathogen is used in vaccination ?

Options

A. Activated and strong pathogenic antigens
B. Inactivated and weakened pathogenic antigens
C. Hyperactive and strong pathogen
D. Preformed antibodies

Answer

B

Explanation

Vaccine is a preparation or extract of an inactivated/attenuated (weakened) pathogen of a disease which on inoculation into a healthy person provides immunity by inducing antibodies production.