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[Immunological control in the system of epidemiological surveillance over infections with different mechanisms of causative agent transmission].

The results of immunological control of infections with different mechanisms of the transmission of their causative agents (diphtheria, measles, viral hepatitis, salmonellosis) for many years are summarized. About 25,000 serum samples taken from humans and more than 10,000 probes from agricultural animals have been studied in the passive hemagglutination test and more than 3,600 serum samples have been studied in the enzyme immunoassay for the presence viral hepatitis markers. Planned immunological control has ensured greater possibilities of the epidemiological diagnosis and prognostication of complications in the epidemic and epizootic situations. Urgent immunological control has made it possible to establish the proportion of non-manifest forms of diseases, to differentiate the foci of infection by transmission routes, to determine the degree of protection from infection and to substantiate the tactics of individual immunization.