title: [On primary isolation of Rickettsia prowazeki in biotests on guinea pigs].
mesh_terms: D000818:Animals; D002642:Chick Embryo; D006168:Guinea Pigs; D007668:Kidney / Q000382:microbiology*; D008297:Male; D012283:Rickettsia prowazekii / Q000302:isolation & purification*; D013154:Spleen / Q000382:microbiology*; D013737:Testis / Q000382:microbiology*
vernacular_title: Pro pervynee vyluchennia ryketsiĭ provacheka v bioprobakh na mors'kykh svynakakh.