Relation of Secondary Antigen Injection to Time of Irradiation on Antibody Production in Mice

Abstract
The maximum depression period of the secondary antibody response takes place when antigen is injected 1 day before to 1 hr after x-radiation. Recovery of the secondary immune mechanism of irradiated mice takes place within 2 weeks. Above-normal mean total titers were observed when a second antigen injection is given 5 and 10 days after 710 r. No significant decrease or increase in mean peak titer was observed regardless of the x-radiation-secondary antigen injection time relationship.