title: [Pathogenic properties of various strains of Rickettsia prowazekii].
mesh_terms: D000818:Animals; D002642:Chick Embryo; D006168:Guinea Pigs; D051379:Mice; D051381:Rats; D012283:Rickettsia prowazekii / Q000472:pathogenicity*
vernacular_title: Patohenni vlastyvosti riznykh shtmv ryketsiĭ provacheka.