title: [Spread of diphyllobothriasis in the USSR and prevention of formation of new foci of the invasion. 1. Natural premises of diphyllobothriasis spread and current situation in various regions of the USSR].
mesh_terms: D004169:Diphyllobothriasis / Q000453:epidemiology / Q000517:prevention & control; D006801:Humans; D014586:USSR
vernacular_title: Rasprostranenie difillobotrioza v SSSR i predotvrashchenie formirovania novykh ochagov invazii. Soobshchenie 1. Prorodnye predposylki rasprostraneniia difillobotrioza i sovremennaia situatsiia v nekotorykh raionakh SSSR.