immunotransfusion

An indirect transfusion in which the donor is first immunized by means of injections of an antigen prepared from microorganisms isolated from the recipient; later, the donor's blood is collected, defibrinated, and then administered to the patient; the latter is then presumably passively immunized by means of antibody formed in the donor, e.g., antibody that reacts with the microorganisms in the patient.

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n.

the transfusion of an antiserum to treat or give temporary protection against a disease.

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im·mu·no·trans·fu·sion (im″u-no-trans-fuґzhən) transfusion of blood from donors previously immunized by the bacteria infecting the patient, or from the specific infection or of blood from persons recently recovered from the specific infection.