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Four isolates of influenza virus strains from Moscow and Habarovsk that caused outbreaks of influenza in November and December 1977 in several cities of the USSR were studied and their haemagglutinins and neuraminidases were compared with those of other human and animal influenza viruses including A/whale/Pacific Ocean/76. In H1 tests these isolates,(More)
A comparative study of antigenic determinants and genome of the analogues of epidemic H1N1 variants isolated from various animal species and from man in the USSR and Mongolia in 1978--1980 was carried out. The analysis of the antigenic determinants of hemagglutinins of the viruses isolated in this period from man, domestic and wild birds and animals(More)
A virus-specific complex with sedimentation constant of 250S and buoyant density 1.35 g/cm3 in cesium chloride density gradient is formed within 20--24 hours after infection in nucleoli of Ehrlich ascitic carcinoma cells infected with Sendai virus. The complex contains a rapidly sedimenting RNA (70--90S) which is about 50% stable to RN-ase. The complex has(More)