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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">sibmed</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский научный медицинский журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Сибирский научный медицинский журнал</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2410-2512</issn><issn pub-type="epub">2410-2520</issn><publisher><publisher-name>ИЦиГ СО РАН</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18699/SSMJ20250630</article-id><article-id custom-type="elpub" pub-id-type="custom">sibmed-2614</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>ПРОФИЛАКТИЧЕСКАЯ МЕДИЦИНА (закрыт с 20.03.26)</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PREVENTIVE MEDICINE</subject></subj-group></article-categories><title-group><article-title>Эпидемиологическая оценка эффективности вакцинации в различные периоды развития эпидемического процесса COVID-19</article-title><trans-title-group xml:lang="en"><trans-title>Epidemiologic evaluation of vaccination efficacy during different periods of COVID-19 epidemic</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1805-7817</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Загузов</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Zaguzov</surname><given-names>V. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Загузов Виталий Сергеевич</p><p>197101, г. Санкт-Петербург, ул. Мира, 14; 194100, г. Санкт-Петербург, ул. Литовская, 2</p></bio><bio xml:lang="en"><p>Vitaliy S. Zaguzov</p><p>197101, Saint-Petersburg, Mira st., 14; 194100, Saint-Petersburg, Litovskaya st., 2</p></bio><email xlink:type="simple">zaguzov.vs@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/0000-0001-9921-3505</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лялина</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Lyalina</surname><given-names>L. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лялина Людмила Владимировна - д.м.н., проф.</p><p>197101, Санкт-Петербург, ул. Мира, 14; 195067, Санкт-Петербург, Пискаревский пр., 47</p></bio><bio xml:lang="en"><p>Liudmila V. Lyalina - doctor of medical sciences, professor.</p><p>195067, Saint-Petersburg, Piskarevsky ave., 47; 197101, Saint-Petersburg, Mira st., 14</p></bio><email xlink:type="simple">lyalina@pasteurorg.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/0000-0002-6557-9290</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ветров</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Vetrov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ветров Вячеслав Вячеславович - к.м.н.</p><p>194100, Санкт-Петербург, ул. Литовская, 2</p></bio><bio xml:lang="en"><p>Vyacheslav V. Vetrov - candidate of medical sciences.</p><p>194100, Saint-Petersburg, Litovskaya st., 2</p></bio><email xlink:type="simple">vvv-3@bk.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/0000-0002-2704-7832</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Молчанова</surname><given-names>Ж. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Molchanova</surname><given-names>Zh. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Молчанова Жанна Руслановна</p><p>236040, г. Калининград, ул. Подполковника Иванникова, 5</p></bio><bio xml:lang="en"><p>Zhanna R. Molchanova</p><p>236040, Kaliningrad, Lieutenant Colonel Ivannikov st., 5</p></bio><email xlink:type="simple">zhanna.molchanova92@mail.ru</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0009-3731-5691</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чугунова</surname><given-names>Г. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Chugunova</surname><given-names>G. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чугунова Галина Владимировна</p><p>191025, г. Санкт-Петербург, ул. Стремянная, 19</p></bio><bio xml:lang="en"><p>Galina V. Chugunova</p><p>191025, Saint-Petersburg, Stremyannaya st., 19</p></bio><email xlink:type="simple">moorzakova@yandex.ru</email><xref ref-type="aff" rid="aff-5"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0006-6681-9125</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ревенко</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Revenko</surname><given-names>A. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ревенко Алексей Борисович</p><p>180014, г. Псков, ул. Николая Васильева, 77</p></bio><bio xml:lang="en"><p>Alexey B. Revenko</p><p>180014, Pskov, Nikolai Vasiliev st., 77</p></bio><email xlink:type="simple">revenko_05@mail.ru</email><xref ref-type="aff" rid="aff-6"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-3399-6835</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петухова</surname><given-names>М. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Petukhova</surname><given-names>M. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Петухова Марина Борисовна</p><p>167610, г. Сыктывкар, ул. Орджоникидзе, 71</p></bio><bio xml:lang="en"><p>Marina B. Petukhova</p><p>167610, Syktyvkar, Ordzhonikidze st., 71</p></bio><email xlink:type="simple">petuhova_mb@gsenkomi.ru</email><xref ref-type="aff" rid="aff-7"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-0568-7226</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Калинина</surname><given-names>Е. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Kalinina</surname><given-names>E. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Калинина Елена Леонидовна</p><p>180000, г. Псков, ул. Гоголя, 21А</p></bio><bio xml:lang="en"><p>Elena L. Kalinina</p><p>180000, Pskov, Gogol st., 21A</p></bio><email xlink:type="simple">epid_upr@60.rospotrebnadzor.ru</email><xref ref-type="aff" rid="aff-8"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>НИИ эпидемиологии и микробиологии им. Пастера; Санкт-Петербургский государственный педиатрический медицинский университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint-Petersburg Pasteur Institute; Saint Petersburg State Pediatric Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>НИИ эпидемиологии и микробиологии им. Пастера; Северо-Западный государственный медицинский университет им. И.И. Мечникова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint-Petersburg Pasteur Institute; North-Western State Medical University named after I.I Mechnikov</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный педиатрический медицинский университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint Petersburg State Pediatric Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Управление Роспотребнадзора Калининградской области</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Department of Rospotrebnadzor of Kaliningrad Region</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru"><institution>Межрегиональное управление Роспотребнадзора по городу Санкт-Петербургу и Ленинградской области</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Subregional department of Rospotrebnadzor of St. Petersburg and Leningrad Region</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-6"><aff xml:lang="ru"><institution>Управление Росгвардии по Псковской области</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Department of Rosgvardiya of Pskov Region</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-7"><aff xml:lang="ru"><institution>Управление Роспотребнадзора по Республике Коми</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Department of Rospotrebnadzor of Komi Republic</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-8"><aff xml:lang="ru"><institution>Управление Роспотребнадзора по Псковской области</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Department of Rospotrebnadzor of Pskov Region</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>29</day><month>01</month><year>2026</year></pub-date><volume>45</volume><issue>6</issue><fpage>293</fpage><lpage>310</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Загузов В.С., Лялина Л.В., Ветров В.В., Молчанова Ж.Р., Чугунова Г.В., Ревенко А.Б., Петухова М.Б., Калинина Е.Л., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Загузов В.С., Лялина Л.В., Ветров В.В., Молчанова Ж.Р., Чугунова Г.В., Ревенко А.Б., Петухова М.Б., Калинина Е.Л.</copyright-holder><copyright-holder xml:lang="en">Zaguzov V.S., Lyalina L.V., Vetrov V.V., Molchanova Z.R., Chugunova G.V., Revenko A.B., Petukhova M.B., Kalinina E.L.</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://sibmed.elpub.ru/jour/article/view/2614">https://sibmed.elpub.ru/jour/article/view/2614</self-uri><abstract><p>Появление новых геновариантов SARS-CoV-2 приводит к необходимости мониторинга эпидемического потенциала вируса, заболеваемости COVID-19 и оценки эффективности вакцинации против этой инфекции.</p><p>Цель исследования – оценка заболеваемости COVID-19 непривитых и привитых против этой инфекции в различные периоды, связанные со сменой ведущих геновариантов SARS-CoV-2. Материал и методы. В работе использованы данные регистрации лабораторно подтвержденных случаев COVID-19 в Санкт-Петербурге, Ленинградской, Калининградской, Псковской областях и Республике Коми в 2020–2024 гг. Для оценки эффективности вакцинации в исследование включены сведения о 2 443 331 случае заболевания среди населения с различным вакцинальным статусом в 2021–2024 гг.</p><sec><title>Методы исследования</title><p>Методы исследования: эпидемиологический анализ, ПЦР в реальном времени. Данные о молекулярно-генетических исследованиях 14 033 образцов получены из баз данных GISAID и VGARus.</p></sec><sec><title>Результаты</title><p>Результаты. Заболеваемость COVID-19 среди полностью привитых в разные годы в регионах была в 5–9 раз ниже, чем среди непривитых. В период циркуляции различных сублиний геноварианта Omicron наблюдалось снижение эффективности двукратной вакцинации. В 2022 г. отмечено уменьшение коэффициента эффективности на 2,1–3,5 % и увеличение шансов заражения на 1,2–3,3 %. В 2023 г. коэффициент снизился на 1,9–2,6%, вероятность заражения увеличилась на 1,5–5,5 %. При нарушении схемы иммунизации наблюдалось повышение шансов заражения на 28,3–36,6 %, вероятность повторного случая заболевания среди полностью привитых была на 95 % меньше. При неполном курсе вакцинации установлено увеличение вероятности повторного инфицирования. В 2024 г. в условиях применения обновленных вакцин отмечено повышение эпидемиологической эффективности вакцинации.</p></sec><sec><title>Заключение</title><p>Заключение. Результаты исследования свидетельствуют об эффективности двукратной схемы вакцинации против первичной и повторной заболеваемости COVID-19. В период появления геноварианта Omicron и его сублиний установлено уменьшение эффективности полного курса иммунизации, нарушение схемы вакцинации также приводило к снижению ее эффективности.</p></sec></abstract><trans-abstract xml:lang="en"><p>The emergence of new genovariants of SARS-CoV-2 leads to the need to monitor the epidemic potential of the virus, COVID-19 morbidity and to assess the effectiveness of vaccination against this infection.</p><p>Aim of the study was to assess the incidence of COVID-19 in unvaccinated and vaccinated population against this infection in different periods associated with the change in the leading SARS-CoV-2 genovariants.</p><sec><title>Material and methods</title><p>Material and methods. The data of registration of laboratory-confirmed cases of COVID-19 in St. Petersburg, Leningrad, Kaliningrad, Pskov regions and the Komi Republic in 2020–2024 were used in this work. To assess the effectiveness of vaccination, data on 2 443 331 cases in the population with different vaccine status in 2021–2024 were included in the study. Research methods: epidemiologic analysis, real-time PCR, statistical methods. Data on molecular genetic studies of 14 033 samples were obtained from GISAID and VGARus databases.</p></sec><sec><title>Results</title><p>Results. The incidence of COVID-19 among the fully vaccinated in different years in the regions was 5–9 times lower compared to the unvaccinated. During the period of circulation of different sublineages of the Omicron genovariant, a decrease in the efficacy of full vaccination was observed. In 2022, a decrease in the efficacy coefficient of 2.1–3.5 % and an increase in the odds of infection of 1.2–3.3 % were observed. In 2023, the efficacy coefficient decreased by 1.9–2.6 % and the odds of infection increased by 1.5–5.5 %. With an incomplete immunization scheme, there was a 28.3–36.6 % increase in the odds of infection, with 95 % lower odds of recurrence among those fully vaccinated. An increase in the probability of re-infection was found with an incomplete vaccination course. In 2024, an increase in the epidemiologic efficiency of vaccination was observed in the conditions of application of updated vaccines.</p></sec><sec><title>Conclusions</title><p>Conclusions. The results of the study indicate the efficacy of a full course of vaccination against primary and recurrent COVID-19 incidence. During the emergence of genovariant Omicron and its sublines, a decrease in the effectiveness of the full course of immunization was established; violation of the vaccination scheme also led to a decrease in its effectiveness.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>коронавирусная инфекция COVID-19</kwd><kwd>геноварианты SARS-CoV-2</kwd><kwd>эффективность вакцинации</kwd></kwd-group><kwd-group xml:lang="en"><kwd>coronavirus infection COVID-19</kwd><kwd>SARS-CoV-2 genovariants</kwd><kwd>vaccination effectiveness</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">Горенчук А.Н., Жоголев С.Д., Кузин А.А. Куликов П.В., Жоголев К.Д., Устинов А.Е. Анализ заболеваемости COVID-19 в организованных воинских коллективах разного типа. Вестн. 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