Richardson, M Prenatal immunization of the lamb to Brucella: Dissociation of immunocompetence and reactivity. [electronic resource] - Journal of immunology (Baltimore, Md. : 1950) Dec 1968 - 1363-6 p. digital Publication Type: Journal Article ISSN: 0022-1767 Subjects--Topical Terms: AnimalsAntibody FormationAntigensBrucella abortusFetusHemagglutination TestsImmunizationSheep