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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">epidemiology</journal-id><journal-title-group><journal-title xml:lang="ru">Эпидемиология и Вакцинопрофилактика</journal-title><trans-title-group xml:lang="en"><trans-title>Epidemiology and Vaccinal Prevention</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-3046</issn><issn pub-type="epub">2619-0494</issn><publisher><publisher-name>«Numicom» LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31631/2073-3046-2023-22-3-26-35</article-id><article-id custom-type="elpub" pub-id-type="custom">epidemiology-1821</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Региональные особенности серотипового состава Streptococcus pneumoniae, выделенных от детей-бактерионосителей дошкольного возраста в Республике Татарстан</article-title><trans-title-group xml:lang="en"><trans-title>Regional Features of the Serotype Composition of Streptococcus pneumoniae isolated from Bacterial Carriers of Preschool Age in the Republic of Tatarstan</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9719-9583</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Исаева</surname><given-names>Г. Ш.</given-names></name><name name-style="western" xml:lang="en"><surname>Isaeva</surname><given-names>G. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Исаева Гузель Шавхатовна, д. м. н., доцент, заместитель директора по инновационному развитию; заведующий кафедрой микробиологии имени академика В.М. Аристовского</p><p>420015, г. Казань, ул. Большая Красная, д.67</p><p>+7 (843) 236-67-81, факс +7 (843) 236-67-41</p></bio><bio xml:lang="en"><p>Isaeva Guzel Sh., Dr. Sci. (Med.), Associate Professor, Deputy Director for Innovative Development; Head of the Department of Microbiology named after Academician V.M. Aristovsky</p><p>67 Bolshaya Krasnaya str., Kazan, 420015, Russia</p><p>+7 (843) 236-67-81, fax: +7 (843) 236-67-41</p></bio><email xlink:type="simple">guzelleisaeva@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2142-7682</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Баязитова</surname><given-names>Л. Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Bayazitova</surname><given-names>L. T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лира Табрисовна Баязитова – к. м. н., заведующая лабораторией микробиологии; доцент кафедры микробиологии имени академика В. М. Аристовского</p><p>+7 (987) 234-19-45</p></bio><bio xml:lang="en"><p>Lira T. Bayazitova – Cand. Sci. (Med.), Head of the Microbiology Laboratory; Associate Professor of the Department of Microbiology named after Academician V.M. Aristovsky</p><p>+7 (987) 234-19-45</p></bio><email xlink:type="simple">bajalt@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6790-0538</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зарипова</surname><given-names>А. З.</given-names></name><name name-style="western" xml:lang="en"><surname>Zaripova</surname><given-names>A. Z.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Альбина Зуфаровна Зарипова – ассистент кафедры микробиологии имени академика В. М. Аристовского</p><p>+7 (987) 299-60-82</p></bio><bio xml:lang="en"><p>Albina Z. Zaripova – Assistant of the Department of Microbiology named after Academician V.M. Aristovsky</p><p>+7 (987) 299-60-82</p></bio><email xlink:type="simple">albina.fahrislamova@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8180-1165</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тюпкина</surname><given-names>О. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Tupkina</surname><given-names>O. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ольга Феликсовна Тюпкина – старший научный сотрудник лаборатории микробиологии</p><p>+7 (951) 068-31-81</p></bio><bio xml:lang="en"><p>Olga F. Tyupkina – Senior Researcher at the Microbiology Laboratory</p><p>+7 (951) 068-31-81</p></bio><email xlink:type="simple">olft1962@gmail.com</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2013-4239</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чазова</surname><given-names>Т. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Chazova</surname><given-names>T. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Татьяна Александровна Чазова – научный сотрудник лаборатории микробиологии</p><p>+7 (919) 689-24-34</p></bio><bio xml:lang="en"><p>Tatiana A. Chazova – Researcher at the Microbiology Laboratory</p><p>+7 (919) 689-24-34</p></bio><email xlink:type="simple">tatiana.chazova.1970@gmail.com</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4733-3959</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хусаинова</surname><given-names>Р. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Khusainova</surname><given-names>R. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ралина Маратовна Хусаинова – младший научный сотрудник лаборатории эпидемиологии и природно-очаговых инфекций; ассистент кафедры микробиологии имени академика В. М. Аристовского</p><p>+7 (950) 317-73-78</p></bio><bio xml:lang="en"><p>Ralina M. Khusainova – Junior Researcher at the Laboratory of Epidemiology and Natural Focal Infections</p><p>+7 (950) 317-73-78</p></bio><email xlink:type="simple">ralina.husainova30121994@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2536-3604</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тюрин</surname><given-names>Ю. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Tyurin</surname><given-names>Yu. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юрий Александрович Тюрин – к. м. н., заведующий лабораторией иммунологии и разработки аллергенов</p><p>+7 (903) 314-07-02</p></bio><bio xml:lang="en"><p>Yuri A. Tyurin – Cand. Sci. (Med.), Head of the Laboratory of Immunology and Allergen Development</p><p>+7 (903) 314-07-02</p></bio><email xlink:type="simple">tyurin.yurii@yandex.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8029-6515</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зиатдинов</surname><given-names>В. Б</given-names></name><name name-style="western" xml:lang="en"><surname>Ziatdinov</surname><given-names>V. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Васил Билалович Зиатдинов – д. м. н., директор</p><p>+7 (987) 297-70-27</p></bio><bio xml:lang="en"><p>Vasil B. Ziatdinov – Dr. Sci. (Med.), Director</p><p>+7 (987) 297-70-27</p></bio><email xlink:type="simple">kniem@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФБУН «Казанский научно-исследовательский институт эпидемиологии и микробиологии» Роспотребнадзора; ФГБОУ «Казанский государственный медицинский университет» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan Research Institute of Epidemiology and Microbiology of Rospotrebnadzor; Kazan State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБОУ «Казанский государственный медицинский университет» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ФБУН «Казанский научно-исследовательский институт эпидемиологии и микробиологии» Роспотребнадзора</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan Research Institute of Epidemiology and Microbiology of Rospotrebnadzor</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>01</day><month>07</month><year>2023</year></pub-date><volume>22</volume><issue>3</issue><fpage>26</fpage><lpage>35</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Исаева Г.Ш., Баязитова Л.Т., Зарипова А.З., Тюпкина О.Ф., Чазова Т.А., Хусаинова Р.М., Тюрин Ю.А., Зиатдинов В.Б., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Исаева Г.Ш., Баязитова Л.Т., Зарипова А.З., Тюпкина О.Ф., Чазова Т.А., Хусаинова Р.М., Тюрин Ю.А., Зиатдинов В.Б.</copyright-holder><copyright-holder xml:lang="en">Isaeva G.G., Bayazitova L.T., Zaripova A.Z., Tupkina O.F., Chazova T.A., Khusainova R.M., Tyurin Y.A., Ziatdinov V.B.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.epidemvac.ru/jour/article/view/1821">https://www.epidemvac.ru/jour/article/view/1821</self-uri><abstract><sec><title>Актуальность</title><p>Актуальность. Вакцинация детского населения против пневмококковой инфекции (ПИ) проводится в Республике Татарстан в соответствии с Национальным календарём профилактических прививок с 2014 г. вакциной конъюгированной пневмококковой ПКВ-13  Цель. Изучение частоты бактерионосительства и серотипового пейзажа S. pneumoniae, выделенных от здоровых детей- бактерионосителей дошкольного возраста в Республике Татарстан (РТ). </p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. С 2016 г. по 2022 г. было обследовано 1426 детей из г. Казани и районов РТ. Исследование мазков из носоглотки проводили классическим бактериологическим методом, серотипирование – ПЦР.</p></sec><sec><title>Результаты</title><p>Результаты. Частота обнаружения S. pneumoniae среди здоровых детей дошкольного возраста варьировала в различные годы от 29,5 до 63%, в среднем составила 38,5%. У городских детей частота пневмококконосительства была достоверно выше, чем у сельских (p &lt; 0,01). Также при анализе серотипового пейзажа наблюдалась микст-колонизация несколькими серотипами. По состоянию на 1 января 2021 г. иммунная прослойка к возбудителю ПИ среди детей дошкольного возраста составляла 81,7%. Мониторинг за серотиповым пейзажем циркулирующих в РТ штаммов S.pneumoniae показал доминирование вакцинных серотипов (67,2%), из которых 44,4% приходится на серотипы ПКВ-13. Доля невакцинных серотипов составляет 26%, нетипируемых – 6,8%. У вакцинированных детей доминировали невакцинные серотипы 35B (21,3%) и 23A (13,6%), а также серотипы, не входящие в ПКВ-13, но входящие в состав полисахаридной вакцины Пневмо 23, не используемой для вакцинации детей, а именно 11AD (15,3%) 9LN (9,6%). У невакцинированных детей, наоборот, превалировали вакцинные серотипы, входящие в состав ПКВ-13: 6ABCD (17,3%), 19F (20,9%), а невакцинные серотипы 11AD, 9LN, 35B, 23A обнаруживали с меньшей частотой 11,8%, 10,0%, 4,2%, 7,3% соответственно.</p></sec><sec><title>Выводы</title><p>Выводы. Данные о региональных особенностях серотипового пейзажа пневмококков могут являться основой для рассмотрения включения в вакцину выявляемых у привитых детей серотипов: 9LN,11 AD, 35B, 23A.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Relevance</title><p>Relevance. Vaccination of the child population against pneumococcal infection (PI) has been carried out in the Republic of Tatarstan according to the national calendar of preventive vaccinations since 2014. The vaccination scheme includes vaccination with PCV-13 conjugated pneumococcal vaccine.</p></sec><sec><title>Aim</title><p>Aim. Study of the the frequency of bacterial transmission and the serotype landscape of S. pneumoniae isolated from healthy children- bacterial carriers of preschool age in the Republic of Tatarstan (RT).</p></sec><sec><title>Materials and methods</title><p>Materials and methods. During the period from 2016 to 2022, 1,426 children from Kazan and the districts of the Republic of Tatarstan were examined. Examination of nasopharyngeal smears was carried out by the classical bacteriological method. Serotyping was performed using molecular genetic methods (PCR).</p></sec><sec><title>Results</title><p>Results. The detection rate of S. pneumoniae among healthy preschool children varied in different years from 29.5 to 63%, averaging 38.5%. In urban children, the incidence of pneumococcal transmission was significantly higher than in rural children (p&lt;0.01). Also, when analyzing the serotype landscape, mixed colonization by several serotypes was observed. As of January 1, 2021, the immune layer to the pathogen PI among preschool children was 81.7%. Monitoring of the serotype landscape of S.pneumoniae strains circulating in the RT showed the dominance of vaccine serotypes (67.2%), of which 44.4% are PCV13 serotypes. The proportion of non–vaccinated serotypes is 26%, untyped - 6.8%. Unvaccinated serotypes 35B (21.3%) and 23A (13.6%) dominated in vaccinated children, as well as serotypes not included in the PKV-13 vaccine cocktail, but included in the PPSV-23 polysaccharide vaccine not used for vaccination of children, namely 11AD (15.3%) 9LN (9.6%). In unvaccinated children, on the contrary, vaccine serotypes included in PCV-13 prevailed: 6ABCD (17.3%), 19F (20.9%), and unvaccinated serotypes 11AD, 9LN, 35B, 23A were detected with lower frequency 11,8%, 10,0%, 4,2%, 7,3% accordingly.</p></sec><sec><title>Conclusion</title><p>Conclusion. Data on the regional features of the pneumococcal serotype landscape can be the basis for expanding the vaccine cocktail due to the dominant serotypes: 9LN,11 AD, 35B, 23A.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>Streptococcus pneumoniae</kwd><kwd>серотипы</kwd><kwd>серотиповой состав</kwd><kwd>вакцинация</kwd><kwd>носительство</kwd><kwd>пневмококковая инфекция</kwd><kwd>дети</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Streptococcus pneumoniae</kwd><kwd>serotypes</kwd><kwd>serotype structure</kwd><kwd>vaccination</kwd><kwd>carrier</kwd><kwd>pneumococcal infection</kwd><kwd>children</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Чучалин А. Г., Брико Н. И., Авдеев С. Н. и др. Федеральные клинические рекомендации по вакцинопрофилактике пневмококковой инфекции у взрослых.Пульмонология. 2019; № 29. 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