title: The experimental infection of cattle with Mycobacterium johnei. IV. Adult cattle maintained in an infectious environment.
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases; D016927:Mycobacterium avium subsp. paratuberculosis; D010283:Paratuberculosis
keywords: CATTLE/diseases; PARATUBERCULOSIS/experimental