Immunity resulting from the development of antibodies in response to the presence of an antigen, as from vaccination or exposure to an infectious disease
Resistance developed in response to stimulus by an antigen (infecting agent or vaccine) and usually characterized by the presence of antibody produced by the host See also host Compare passive immunity
Immunity produced by the persons own immune system This type of immunity can be brought about by a natural infection or by a vaccine It is usually long lasting (Compare with passive immunity )