title: Plasmid-induced loss of virulence in Vibrio cholerae.
mesh_terms: D000818:Animals; D001681:Biological Assay; D002772:Cholera Toxin / Q000096:biosynthesis; D022121:Cholera Vaccines / Q000276:immunology*; D010957:Plasmids; D011817:Rabbits; D014613:Vaccines, Attenuated / Q000276:immunology; D014734:Vibrio cholerae / Q000276:immunology / Q000472:pathogenicity*
chemical_list: D022121:Cholera Vaccines; D014613:Vaccines, Attenuated; D002772:Cholera Toxin