M903 is a new type of mineral oil-based adjuvant, which belongs to water-in-oil-in-water (w/o/w) emulsion. It can enhance both cellular and humoral immunity against non-specific antigens, stimulate specific immunity against the antigens, delay the release of the antigens in the body, and improve the immunity of animals. It is applicable to various veterinary vaccines, including inactivated vaccines and genetically engineered subunit vaccines, such as pig vaccines for foot-and-mouth disease and blue ear disease.
