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Relevance. The need to create a domestic pneumococcal polyvalent vaccine is one of the main directions of the «Strategy for the development of vaccine prevention of infectious diseases for the period up to 2035».Aim. To evaluate the immunological efficacy and safety of the pneumococcal polysaccharide conjugate adsorbed thirteen-valent (PCV13) vaccine in the immunization of adults and children in theRussian Federation.Materials and methods. The immunological efficacy and safety of the pneumococcal polysaccharide conjugated adsorbed thirteen-valent vaccine were studied in a prospective comparative randomized double-blind study in parallel groups in adult volunteers aged 18 to 65 years and a multicenter open comparative study in parallel groups in young children. In a clinical study of adults, 60 volunteers were randomized into two groups according to the 1:1 scheme (groupI, n = 30; group II, n = 30). A clinical study in children included 119 volunteers aged 15 months who were divided according to the 1:1:1 scheme (group I, n = 39; group II, n = 40; group III, n = 40). The reference vaccine in both studies is Prevenar® 13 (Pfizer Inc., USA).Results. A clinical study in adults showed no statistically significant difference between the study groups according to the results of primary (the proportion of volunteers whose concentration of serotype-specific IgG to each of the 13 pneumococcal serotypes is equal to or exceeds the level of 0.35 mcg/ml (p > 0.039) before vaccination and 4 weeks after vaccination) and secondary criteria for evaluating effectiveness. Thus, the results obtained indicate a comparable level of immunogenicity of PCV13 with the comparison drug Prevenar®13 with a single intramuscular injection to healthy volunteers aged 18–65 years. Safety in both groups was comparable, 15 local reactions were registered, including 7 in group I volunteers who received the test drug, and 8 in comparison group volunteers. There were no statistically significant differences in the frequency of registered adverse events between the groups. Similar results were obtained with the immunization of children. For all 13 serotypes of the new PCV13 in relation to the reference drug, both primary and secondary criteria for assessing immunogenicity during immunization of children have been achieved (Difference ≤ 10% and GMC and GMT Ratio ≥ 0.5, respectively), which proves no less effectiveness of the pneumococcal polysaccharide conjugated adsorbed thirteen-valent vaccine compared with the reference vaccine Prevenar® 13. During the clinical study, a total of 27 adverse events were registered in children, which were associated with the introduction of vaccines and were represented by local and systemic reactions (5 AEs in study participants from group I (5/39) 12.80%, 18 AEs in study participants from group II (18/40) 45.0% and 4 AEs in study participants from group III (4/40) 10%). No SAEs were registered in this study.Conclusion. The obtained results of the researches in children and adults allow us to recommend the preparation pneumococcal polysaccharide conjugate adsorbed thirteen-valent vaccine for immunization in order to prevent pneumococcal infection, both adults and children according to the 2+1 scheme within the National vaccination schedule and the calendar of preventive vaccinations according to epidemic indications of the Russian Federation.

Objective. The article presents various forms of interaction between Academician E.A Vagner Perm State Medical University and authorities and institutions of healthcare as well as Rospotrebnadzor to ensure practical orientation of the educational process at the undergra-duate and postgraduate levels of training the discipline "Epidemiology". Materials and methods. The most significant directions of educational process are described, which allow students to acquire the necessary skills and abilities for future professional activities. Results. Practical training permits to form a number of universal and general professional competences among students. Conclusions. Involvement of highly qualified specialists of practical healthcare and Rospotrebnadzor in educational process allows making the learning process not only fascinating and informative, but also improves the quality of training students.

The paper presents historical stages in the development of the Department of Epidemiology and Hygiene of E.A. Vagner Perm State Medical University. The evolution of technologies, forms and methods used in educational process are described. There are formulated the directions of activity of the department and the experience of work with organs and institutions of public health and Rospotrebnadzor.

The analysis of the vaccine preventive status of infectious diseases in adults in Russia and various countries of the world is presented in the article. The problems and directions of improving the immunization of the adult population in Russia are identified.

Russia introduced PCV13 in 2014. We studied the serotype composition of S. pneumoniae isolated from the nasopharynx of healthy children younger than 6 years in St. Petersburg, Smolensk, Perm, Krasnoyarsk, Khanty-Mansiysk and Khabarovsk, between 2016 and 2018. 2.4% of children had completed a 3-dose course of PCV13, while 25.6% had received 1 or 2 doses. Pneumococcal DNA detection by PCR demonstrated S. pneumoniae in 37.2% of samples with regional variation between sites (27.3 to 56.9%). There was little difference between vaccinated, partially vaccinated and un-vaccinated children. Children who had received at least 1 dose of PCV13 had lower carriage rates of vaccine serotypes than their unvaccinated peers (49.9 vs. 61.4%; p 0.001). Children who had received at least 1 dose of PCV13 showed increased carriage rates of non-vaccine serotypes (50 vs 38.6%; P 0.001). Especially serogroup 15AF was more prevalent among fully immunized children than among their peers (12.5 vs 2.7%; P 0.05).