Also found in: Thesaurus, Medical, Legal, Encyclopedia, Wikipedia.
Related to active immunity: passive immunity, natural immunity, artificial passive immunity, artificial active immunity, artificial immunity
Immunity resulting from the development of antibodies in response to the presence of an antigen, as from vaccination or exposure to an infectious disease.
immunity resulting from one's own production of antibody or white blood cells.
Switch to new thesaurus
|Noun||1.||active immunity - a form of acquired immunity in which the body produces its own antibodies against disease-causing antigens|
acquired immunity - immunity to a particular disease that is not innate but has been acquired during life; immunity can be acquired by the development of antibodies after an attack of an infectious disease or by a pregnant mother passing antibodies through the placenta to a fetus or by vaccination