SummaryThree virus strains isolated from Ixodes putus ticks were shown to be related to, though not identical, with Uukuniemi virus by complement-fixation tests. No antigenic relations were detected in the cross-neutralization test performed with the virus isolated and Uukuniemi virus. Two virus strains were isolated in 1969 on Tyuleniy island, Zaliv Terpeniya (Patience Bay) of the Sea of 0khotsk (Sakhaiin region), one virus strain in 1970 on the Ariy Kamen' rock situated close to the Pacific coast of Bering island, Commodore islands (Kamchatka region). The isolated agent was named after Zaliv Terpeniya, the place of its primary isolation.
SummaryVirus strain LEIV-284 Ka was isolated from Ixodes (Ceratixodes) putus tick collected in August, 1970, from Phalacrocorax pelagicus Pallas (pelagic cormorants) on Commodore Islands. The strain was shown to be identica] with strains of Tyuleniy virus, a group B arbovirus, recovered in 1969 on Tyuleniy Island, Sea of Okhotsk. On Commodore Islands, hemagglutination inhibiting antibodies for the virus were found in 6% of the residents, 22% of fur seals, 24% of Uria aalge (common murres), 23 % of Lunda cirrhata (tufted puffins) and in 11% of the Rissa tridactyla (black legged Kittiwakes).
SummaryIn 1969--1971 nine virus strains were isolated from Ixodes putus ticks and were shown to be antigenically related to Kemerovo virus by complement-fixation tests. By neutralization tests, no antigenic relations were revealed. Five virus strains were isolated on Tyuleniy island, Sakhalinsk region (1969--1971); three virus strains on Ariy Kamen' rock in the vicinity of the Pacific coast of Bering island, Commodore islands, Kamchatsk region (1970--1971) and one on the SouthEastern coast of Chukotka, Magadansk region (1971). The isolated virus was named after the place of its first isolation, the sea of Okhotsk. A serological survey of 1066 birds in the Far East indicated their active role in circulation of the virus, since complement-fixing antibodies were found in 3.9 per cent of Uria aalge (common murres), 14.6 per cent of Fulmarus glacialis (fulmars) and 0.7 per cent of Phalacrocorax pelagicus (pelagic cormorants).Complement-fixing and virus-neutralizing antibodies were found in birds from Commodore islands in Kamchatsk region and from Iona, Tyuleniy, Moneron islands in Sakhalinsk region.
IntroduetionTicks were collected in 1969--1971 on: i) Tyuleniy island, Zaliv Terpeniya Patience bay) of the sea of Okhotsk, S~khalinsk region (12) ; ii) Ariy Kamen' rock situated close to the Pacific coast of Bering island, Commodore islands, Kamchatsk region (16); iii) the South-Eastern coast of Chukotka, Magadansk region.
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