<prompt> Adoptive immunity is by?InfectionInjection of antibodiesInjection of lymphocytesImmunization  <response>: Aadoptive immunity: a special type of immunisation is the injection of immunologically competent lymphocytes. - instead of whole lymphocytes, an extract of immunologically competent lymphocytes, known as the transfer factor can be used. Reference: Anathanarayan panikers 9th edition, pg no:84 p 