[A new type of pleurocercoids in the genus Diphyllobothrium from smelts in the Far East of the USSR].

The research has demonstrated that 35.8% of Hypomesus pretiosus Girard and 55.9% of Osmerus eperlanus dentex Steindachner in various regions of the Far East of the USSR (Khabarovsk and Primorye territories and Sakhalin) are affected by diphyllobothriid larvae of a hitherto unknown type, indicated as the G type.

[The spread and evaluation of the potential for the formation of new foci of opisthorchiasis and diphyllobothriasis in the Yenisei basin].

Current epidemiological situation on opisthorchiasis and bothriocephaliasis and possibility of its alteration due to hydro construction is characterized. Construction of the Bratsk and Krasnoyarsk reservoirs led to development of new large foci of bothriocephaliasis. There is a possibility of developing new foci near other operating reservoirs or near those under construction and design.