Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.
Related to immune deviation: Immunological memory
1. Synonym(s): split tolerance
2. the gradual change from the typical in utero Th2 cell perdominant immune system to a T1 predominant status, the usual process in the non-atopic infant.
modification of an immune response to an antigen caused by a previous exposure to the same antigen.