Canadian Medical Guide > Analytical, Diagnostic and Therapeutic Techniques and Equipment > Therapeutics > Biological Therapy > Immunotherapy > Immunization Terms and Definitions

Immunization

Medical Definition:	Deliberate stimulation of the host's immune response. Active immunization involves administration of antigens or immunologic adjuvants. Passive immunization involves administration of immune sera or lymphocytes or their extracts (e.g., transfer factor, immune RNA) or transplantation of immunocompetent cell producing tissue (thymus or bone marrow).
Guide Notes:	IM; do not use /util except by MeSH definition

Immunization Categories.

	Immunization Schedule - Schedule giving optimum times usually for primary and/or secondary immunization.
	Immunization, Passive - Transfer of immunity from immunized to non-immune host by administration of serum antibodies, or transplantation of lymphocytes (ADOPTIVE TRANSFER).
	Immunization, Secondary - Any immunization following a primary immunization and involving exposure to the same or a closely related antigen.
	Immunotherapy, Active - Active immunization where vaccine is administered for therapeutic or preventive purposes. This can include administration of immunopotentiating agents such as BCG vaccine and Corynebacterium parvum as well as biological response modifiers such as interferons, interleukins, and colony-stimulating factors in order to directly stimulate the immune system.
	Mass Immunization - Administration of an antigen to large populations in order to produce an immune response to that antigen.

Immunization Medical Definitions and Terms

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