antilymphocyte serum

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(antilymphocyte globulin, ALS, ALG) an antiserum, containing antibodies that suppress lymphocytic activity, prepared by injecting an animal with lymphocytes. ALS may be given to a patient to prevent the immune reaction that causes tissue rejection following transplantation of such organs as kidneys or of bone marrow. Administration naturally also impairs other immunity mechanisms, making infection a serious hazard.

Subjects: Medicine and Health.

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