The methods and compositions of the present invention are directed to a vaccine against Vibrio cholerae comprised of V. cholerae outer membrane vesicles (OMVs). Such vaccines are relatively stable, facilitating distribution. Inventive methods generally include administration of a vaccine against Vibrio cholerae by intranasal, intraperitoneal, oral or intragastric routes. Such vaccines confer immunity to the individual, and when administered to pregnant subjects, can be conferred to the offspring of individuals.
