Evaluation of the effectiveness of infectious diseases immunoprophylaxis (review of our own research on the model of tick-borne encephalitis)

The tick-borne encephalitis (TBE) virus causes a dangerous neuroinfection in humans can serve as a model for studying the mechanisms of interaction of pathogens with specific antibodies during active and passive immunization. Several commercial vaccines are currently used against TBE. This review analyzes long-term studies aimed at explaining the active and passive efficacy of specific immunoprophylaxis against TBE.

The effectiveness of "Encepur® adult" TBE vaccine has been studied in terms of seroconversion and strength of the immune response by serological reactions, namely IFA, ELISA and neutralizing were reviewed.

Rapid elimination of the virus (after 1-2 days) can occur in vaccinated individuals with antibodies in titers of more than 1: 400. Persons with antibodies in titers of 1: 100 and 1: 200, most likely, should be offered mandatory revaccination. It should also take into account the duration of the retention of post-vaccination antibodies.

In the year of TBE vaccination, the immune response was at a high level and practically did not differ. A particularly high level of immune protection was observed in persons who were vaccinated by a combination of TBE vaccines of various producers.