69th B.P.S.C. (Pre) 2023
How do vector vaccines work to provide immunity?
aBy introducing a weakened or inactivated virus into the body
bBy directly attacking and destroying pathogens in the body
cBy placing the virus in a modified version of a different virus✓ Correct
dBy entering directly into the cells and enabling them to create spike proteins
Explanation
Vector vaccines work to provide immunity by using a modified version of another virus to deliver the required genetic material into the body. This enables the body to produce the target antigen and develop an immune response.
general-science