title: [Comparative study of the preventive properties of sera obtained by immunization with Shigella flexneri strains of varying degrees of virulence].
mesh_terms: D000818:Animals; D002642:Chick Embryo; D007106:Immune Sera / Q000494:pharmacology*; D007109:Immunity; D007114:Immunization; D007928:Lethal Dose 50; D009154:Mutation; D011815:R Factors; D011817:Rabbits; D012763:Shigella flexneri / Q000276:immunology* / Q000472:pathogenicity; D014774:Virulence
chemical_list: D007106:Immune Sera
vernacular_title: Sravnitel'noe izuchenie preventivnykh svoĭstv syvorotok, poluchennykh pri immunizatsii shtammami shigell Fleksnera razlichnoĭ stepeni virulentnosti