Definition
Hyperimmunization is the presence of a larger than normal number of antibodies to a specific antigen. This creates a state of immunity that is greater than normal. Immune system overactivity can cause many different diseases.
References
Crow MK. The innate and adaptive immune system. In: Goldman L, Cooney KA, eds. Goldman-Cecil Medicine. 27th ed. Philadelphia, PA: Elsevier; 2024:chap 35.