Immunization of animals using choline esters as an immunological adjuvant

摘要

An enhanced immune response is obtained in the immunization of animals with antigens by administrating with said antigens as an immunological adjuvant, a choline ester having the structure: ##STR1## wherein R is lower alkyl, R' is selected from H and R, Z is selected from NH.sub.2 and R and X is halo.