[Diphyllobothriasis in the Far East of the USSR].

The analysis of the literary data has shown that the population of the Far East is infected not with D. latum, as in other areas of the disease distribution, but with the Far Eastern tapeworm type D. klebanovskii. The final hosts of the parasite are the representatives of the Carnivora order, while the additional hosts are fish of Oncorhynchus and Salvelinus genera. Helminthiasis foci are localized in seaside biotopes on the Sea of Japan, the Sea of Okhotsk and the Bering Sea. The remaining area of the disease distribution, including Maritime and Khabarovsk Territory, Sakhalin and Kamchatka regions and the sea water area were a zone to which D. klebanovskii is brought by Pacific Ocean salmon with pseudofoci of invasion.