Question

A person have antibodies of measles in his blood what happens if we inject measles pathogens to him​

Answer 1

Antibodies will react against the measles pathogens entering the body by forming an antigen-antibody complex and would destroy them before they cause infection in the body.

Answer 2

Answer:

Antibody will start acting against measles pathogen by forming antigen-antibody complex and will destroy the pathogen completely.