Which form of pathogen is used in vaccination ?
A. Activated and strong pathogenic antigens
B. Inactivated and weakened pathogenic antigens
C. Hyperactive and strong pathogen
D. Preformed antibodies
Answer:B
Which form of pathogen is used in vaccination ?
A. Activated and strong pathogenic antigens B. Inactivated and weakened pathogenic antigens C. Hyperactive and strong pathogen D. Preformed antibodies