What is the purpose of a booster dose of vaccine? A) to inoculate the body with pathogens B) to increase the levels of serum antibodies C) to eliminate invading pathogens from the system D) to remove

What is the purpose of a booster dose of vaccine? A) to inoculate the body with pathogens B) to increase the levels of serum antibodies C) to eliminate invading pathogens from the system D) to remove the excess serum antibodies in the system