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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">actabiomedica</journal-id><journal-title-group><journal-title xml:lang="ru">Acta Biomedica Scientifica</journal-title><trans-title-group xml:lang="en"><trans-title>Acta Biomedica Scientifica</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2541-9420</issn><issn pub-type="epub">2587-9596</issn><publisher><publisher-name>Scientific Centre for Family Health and Human Reproduction Problems</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29413/ABS.2025-10.2.17</article-id><article-id custom-type="elpub" pub-id-type="custom">actabiomedica-5313</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>ПЕДИАТРИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PEDIATRICS</subject></subj-group></article-categories><title-group><article-title>Динамическая оценка иммунного статуса у детей после перенесенной новой коронавирусной инфекции</article-title><trans-title-group xml:lang="en"><trans-title>The dynamic assessment of immune status in children after a new coronavirus infection</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4196-0713</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Москалева</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Moskaleva</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москалева Екатерина Владимировна – кандидат медицинских наук, научный сотрудник лаборатории инфектологии и иммунопрофилактики в педиатрии </p><p>664003 ул. Тимирязева, 16, Иркутск</p></bio><bio xml:lang="en"><p>Ekaterina V. Moskaleva Cand. Sc. (Med.), Research Officer at the Laboratory of Infectology and Immunoprophylaxis</p><p>Timiryazev str., 16, Irkutsk, 664003 </p></bio><email xlink:type="simple">mkatena@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/0000-0002-7965-8061</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петрова</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Petrova</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Петрова Алла Германовна – доктор медицинских наук, профессор, главный научный сотрудник, руководитель лаборатории инфектологии и иммунопрофилактики в педиатрии </p><p>664003 ул. Тимирязева, 16, Иркутск</p></bio><bio xml:lang="en"><p>Alla G. Petrova – Dr. Sc. (Med.), Professor, Head of the Laboratory of Infectology and Immunoprophylaxis</p><p>Timiryazev str., 16, Irkutsk, 664003 </p></bio><email xlink:type="simple">rudial75@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/0000-0001-5292-0907</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рычкова</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Rychkova</surname><given-names>L. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Рычкова Любовь Владимировна – доктор медицинских наук, профессор, член-корреспондент РАН, директор </p><p>664003 ул. Тимирязева, 16, Иркутск</p></bio><bio xml:lang="en"><p>Lyubov V. Rychkova – Dr. Sc. (Med.), Professor, Corresponding Member of the Russian Academy of Sciences, Director</p><p>Timiryazev str., 16, Irkutsk, 664003 </p></bio><email xlink:type="simple">iphr@sbamsr.irk.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/0000-0002-9353-7928</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Новикова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Novikova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новикова Евгения Анатольевна – кандидат медицинских наук, научный сотрудник лаборатории инфектологии и иммунопрофилактики в педиатрии</p><p>664003 ул. Тимирязева, 16, Иркутск</p></bio><bio xml:lang="en"><p>Evgenia A. Novikova – Cand. Sc. (Med.), Research Officer at the Laboratory of Infectology and Immunoprophylaxis</p><p>Timiryazev str., 16, Irkutsk, 664003 </p></bio><email xlink:type="simple">europe411@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/0000-0002-6324-8746</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Козлова</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozlova</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Козлова Ирина Валерьевна – доктор медицинских наук, ведущий научный сотрудник, руководитель лаборатории молекулярной эпидемиологии и генетической диагностики </p><p>664003 ул. Тимирязева, 16, Иркутск</p></bio><bio xml:lang="en"><p>Irina V. Kozlova – Dr. Sc. (Med.), Leading researcher, Head of the Laboratory of Molecular Epidemiology and Genetic Diagnostics</p><p>Timiryazev str., 16, Irkutsk, 664003 </p></bio><email xlink:type="simple">diwerhoz@rambler.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/0000-0003-3354-2992</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Колесникова</surname><given-names>Л. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Kolesnikova</surname><given-names>L. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Колесникова Любовь Ильинична – доктор медицинских наук, профессор, академик РАН, научный руководитель </p><p>664003 ул. Тимирязева, 16, Иркутск</p></bio><bio xml:lang="en"><p>Lyubov I. Kolesnikova – Dr. Sc. (Med.), Professor, Member of the Russian Academy of Sciences, scientific advisor</p><p>Timiryazev str., 16, Irkutsk, 664003 </p></bio><email xlink:type="simple">iphr@sbamsr.irk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ «Научный центр проблем здоровья семьи и репродукции человека»</institution></aff><aff xml:lang="en"><institution>Scientifiс Centre for Family Health and Human Reproduction Problems</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>19</day><month>05</month><year>2025</year></pub-date><volume>10</volume><issue>2</issue><fpage>172</fpage><lpage>179</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Москалева Е.В., Петрова А.Г., Рычкова Л.В., Новикова Е.А., Козлова И.В., Колесникова Л.И., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Москалева Е.В., Петрова А.Г., Рычкова Л.В., Новикова Е.А., Козлова И.В., Колесникова Л.И.</copyright-holder><copyright-holder xml:lang="en">Moskaleva E.V., Petrova A.G., Rychkova L.V., Novikova E.A., Kozlova I.V., Kolesnikova L.I.</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.actabiomedica.ru/jour/article/view/5313">https://www.actabiomedica.ru/jour/article/view/5313</self-uri><abstract><sec><title>Актуальность</title><p>Актуальность. Остаются недостаточно изученными изменения иммунной системы на фоне инфекционного процесса, вызванного вирусом SARS-CoV-2. Публикаций, посвященных характеру и продолжительности нарушений иммунитета единичное количество. Сохраняются опасения возможности формирования отдаленных последствий, связанных с иммунной недостаточностью. Динамическая оценка иммунологических параметров у детей после COVID-19 крайне важна для профилактики возможных осложнений и отдаленных последствий.</p></sec><sec><title>Цель</title><p>Цель. Провести мониторинг параметров иммунного статуса у детей в постковидном периоде через 1, 3 и 12 месяцев.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. В исследовании приняли участие 60 детей г. Иркутска с диагнозом СOVID-19. Исследование иммунного статуса, определение наличия специфических антител A, М, G и титра IgG к вирусу SARS-CoV-2 осуществлялся через 1, 3, 12 месяцев после острого периода СOVID-19.</p></sec><sec><title>Результаты</title><p>Результаты. В постковидный период у детей через 1, 3, 12 месяцев после COVID-19 выявляются изменения параметров иммунитета – клеточного, гуморального звеньев и системы фагоцитоза. Наибольшие изменения наблюдались через 12 месяцев после COVID-19 в виде отрицательной динамики показателей фагоцитоза (p &lt; 0,001). Через 1, 3 и 12 месяцев не изменяется доля детей с отклонениями показателей клеточного иммунитета (р &gt; 0,05). Уровни общих иммуноглобулинов у большинства детей находились в референсном интервале (р &gt; 0,05). Через год у всех детей определялись IgG к SARSCoV-2 (р &lt; 0,0001) при этом 96,7 % имели высокий титр антител.</p></sec><sec><title>Заключение</title><p>Заключение: Изменения показателей иммунного статуса у детей после COVID-19 можно рассматривать в качестве предикторов в постковидном периоде отдаленных последствий, включая развитие хронической инфекционной патологии. Необходимо продолжить динамический мониторинг состояния иммунитета и состояния здоровья детей после перенесенной COVID-19.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background. The changes in the immune system against the background of the infectious process caused by the SARS-CoV-2 virus remain insufficiently studied. Concerns remain about the possibility of long-term consequences associated with immune deficiency. Dynamic assessment of immunological parameters in children after COVID-19 is essential to prevent possible complications and long-term consequences.</p></sec><sec><title>The aim</title><p>The aim. To monitor the immune status of children in post-COVID period after 1, 3 and 12 months.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. Sixty children of the city of Irkutsk with COVID-19 diagnosis participated in the study. Investigation of immune status, determination of the presence of specific antibodies A, M, G and titer IgG to the SARS-CoV-2 virus was carried out 1, 3, 12 months after the acute period of COVID-19.</p></sec><sec><title>Results</title><p>Results. In the post-COVID period, children after 1, 3, 12 months after COVID-19 reveal changes in immune parameters – cellular, humoral link and phagocytosis system. The biggest changes were observed 12 months after COVID-19 in the form of negative dynamics of phagocytosis (p &lt; 0.001). There is no change in the proportion of children with abnormal cell immunity (p &gt; 0.05) over months 1, 3 and 12. Overall immunoglobulin levels in most children were within the reference range (p &gt; 0.05). After a year, all children were identified with IgG to SARS-CoV-2 (p &lt; 0.0001) and 96.7 % had high titer antibodies.</p></sec><sec><title>Conclusion</title><p>Conclusion. Changes in the immune status of children after COVID-19 can be considered as predictors in the post-COVID period of long-term consequences, including the development of chronic infectious pathology. The dynamic monitoring of children’s immunity and health status after COVID-19 should be continued.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>дети</kwd><kwd>COVID-19</kwd><kwd>иммунный статус</kwd><kwd>SARS-CoV-2</kwd></kwd-group><kwd-group xml:lang="en"><kwd>children</kwd><kwd>COVID-19</kwd><kwd>immune status</kwd><kwd>SARS-CoV-2</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">WHO/2019-nCoV/PostCOVID-19condition/CA/Clinical_case_definition/2023.1. URL: https://www.who.int/publications/i/item/WHO-2019-nCoV-Post-COVID-19condition-CA-Clinical-case-definition-2023-1 [access date: 26.09.2022.</mixed-citation><mixed-citation xml:lang="en">WHO/2019-nCoV/PostCOVID-19condition/CA/Clinical_case_definition/2023.1. 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