[The etiological structure of acute respiratory infectious morbidity based on the data from a rapid diagnosis in Minsk].

Examination of 60,792 residents of Minsk in different seasons of 1977-1989 by indirect immunofluorescence showed this method to be able of recoding not only mono- but also polyetiological epidemics. The epidemic threshold for influenza A is 15% of positive findings, for influenza B is 7-8%, for polyetiological epidemics (influenza A and B) is 15-16% and 9-10%, respectively. The criterion of the epidemic situation in the city is a twofold increase (or higher) in the level of influenza A and B virus antigen findings in rhinocytological preparations as compared with the previous week.

[Epidemiological effectiveness of an inactivated three-component flu vaccine with an increased concentration of hemagglutinin in the inoculation dose].

The work presents the results of the evaluation of mass immunization of working adults with inactivated trivalent influenza vaccine under the conditions of an epidemic caused by influenza viruses A (H1N1), A (H3N2) and B. This immunization produced no effect on influenza morbidity in the groups of vaccinees in comparison with those of nonvaccinated persons. The index of effectiveness was 1.

[Impact of influenza epidemics on cardiovascular disease mortality].

The study data indicated that the reduced epidemics of influenza over the period from 1975 to 1986 did not have any impact on the dynamics of general mortality and mortality from the main types of cardio-vascular diseases among population of Minsk.