Explain why a secondary antibody response to an antigen may prevent a bacterial or viral disease when the primary adaptive immune response to that antigen did not protect the person from the disease.

Explain why a secondary antibody response to an antigen may prevent a bacterial or viral disease when the primary adaptive immune response to that antigen did not protect the person from the disease..

Explain why a secondary antibody response to an antigen may prevent a bacterial or viral disease when the primary adaptive immune response to that antigen did not protect the person from the disease.