[Postvaccinal dysentery immunity studied on the model of ligated loop of the small intestine of rabbits].

Chemical (detergent) antigens administered intraintestinally or intravenously to rabbits were applied to reproduce postvaccinal immunity to experimental shigellosis. There was noted an increase of the antibody level in the serum, an intensification of its preventive proerties, and the absence of dilatation of the isolated loops of the small intestine after the administration of the corresponding dysentery culture. Oral immunization of rabbits with the detergent antigen sorbed on ionexchange resin also led to immunity.