title: The in vivo activity of a smooth phage-resistant variant of Brucella abortus strain 19.
mesh_terms: D000818:Animals; D001435:Bacteriophages; D002003:Brucella abortus / Q000254:growth & development* / Q000302:isolation & purification; D002006:Brucellosis / Q000382:microbiology*; D005260:Female; D006168:Guinea Pigs