title: "R"-living vaccine against colibacillosis. II. Further characteristics of the vaccine-matrix strain.
mesh_terms: D000372:Agglutination Tests; D000942:Antigens, Bacterial / Q000032:analysis; D001428:Bacterial Vaccines; D004927:Escherichia coli Infections / Q000276:immunology / Q000517:prevention & control*; D006801:Humans; D009500:Neutralization Tests; D011233:Precipitin Tests
chemical_list: D000942:Antigens, Bacterial; D001428:Bacterial Vaccines