title: Reduction in immunity to its own colicin associated with antigen segregation from phase I to phase II in a wild strain of Shigella sonnei.
mesh_terms: D000372:Agglutination Tests; D000941:Antigens; D003087:Colicins; D004926:Escherichia coli; D012764:Shigella sonnei / Q000276:immunology*
chemical_list: D000941:Antigens; D003087:Colicins