Immunity Against Experimental Cholera

Abstract
Choleragen, an antigenic, choleragenic protein moiety isolated from cultures of chlorea vibrios, administered parenterally, immunized adult rabbits against intestinal challenge with either living cholera vibrios or with choleragen. A degree of resistance against choleragen could be passively transferred by serum to infant rabbits. These results suggest that choleragen offers promise as an effect immunogen against cholera.