title: Studies of Johne's disease. Studies on the various antigens of Mycobacterium paratuberculosis by agar-gel precipitation test.
mesh_terms: D000818:Animals; D005779:Immunodiffusion; D007122:Immunoelectrophoresis; D009169:Mycobacterium tuberculosis / Q000276:immunology*; D010283:Paratuberculosis / Q000276:immunology*; D011817:Rabbits; D012756:Sheep