[Epidemiology and prevention of influenza].
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Biomedical subjects
Publications and source records attributed to M I Sokolov.
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Poor issues in the most cases concerned were due to gastric resection either not adeqately indicated of performed with technical shortcomings. It is quite possible to reduce considerably the number of poor late results if the resection is performed on strict indications with proper accomplished of its technical details.
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A comparative study of variability of the properties of influenza A2 viruses isolated in different epidemic years (1964-1965, 1968-1969, 1972-1973) showed that in the course of influenza virus evolution changes occurred not only in the antigenic properties of surface proteins (hemagglutinins and neuraminidase) but in a number of other properties as well. In contrast to previously circulating strains, influenza A2 virus strains isolated in the epidemic of 1971-1972 were found to have higher reproducing and neuraminidase activities, greatly increased thermostability and the capacity to induce viremia regularly in white mice.