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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.2021-6.2.6</article-id><article-id custom-type="elpub" pub-id-type="custom">actabiomedica-2729</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>ИНФЕКЦИОННЫЕ БОЛЕЗНИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>INFECTIOUS DISEASES</subject></subj-group></article-categories><title-group><article-title>Состояние показателей иммунного статуса у детей после перенесённой новой коронавирусной инфекции</article-title><trans-title-group xml:lang="en"><trans-title>Indicators of the 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>кандидат медицинских наук, научный сотрудник лаборатории инфектологии и иммунопрофилактики в педиатрии, </p><p>664003, г. Иркутск, ул. Тимирязева, 16</p></bio><bio xml:lang="en"><p>Cand. Sc. (Med.), Research Officer at the Laboratory of Infectology and Immunoprophylaxis, </p><p>Timiryazeva 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>доктор медицинских наук, профессор, главный научный сотрудник, заведующая лабораторией инфектологии и иммунопрофилактики в педиатрии, </p><p>664003, г. Иркутск, ул. Тимирязева, 16</p></bio><bio xml:lang="en"><p>Dr. Sc. (Med.), Professor, Head of the Laboratory of Infectology and Immunoprophylaxis, </p><p>Timiryazeva 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>член-корреспондент РАН, директор, </p><p>664003, г. Иркутск, ул. Тимирязева, 16</p></bio><bio xml:lang="en"><p>Corresponding Member of the Russian Academy of Sciences, Director,</p><p>Timiryazeva 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>младший научный сотрудник лаборатории инфектологии и иммунопрофилактики в педиатрии, </p><p>664003, г. Иркутск, ул. Тимирязева, 16</p></bio><bio xml:lang="en"><p>Junior Research Officer at the Laboratory of Infectology and Immunoprophylaxis,</p><p>Timiryazeva 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/0000-0001-8434-1600</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ваняркина</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Vanyarkinа</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат медицинских наук, научный сотрудник лаборатории инфектологии и иммунопрофилактики в педиатрии, </p><p>664003, г. Иркутск, ул. Тимирязева, 16</p></bio><bio xml:lang="en"><p>Cand. Sc. (Med.), Research Officer at the Laboratory of Infectology and Immunoprophylaxis,</p><p>Timiryazeva str. 16, Irkutsk 664003</p></bio><email xlink:type="simple">nasty-191@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФБГНУ «Научный центр проблем здоровья семьи и репродукции человека»</institution></aff><aff xml:lang="en"><institution>Scientific Centre for Family Health and Human Reproduction Problems</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>21</day><month>06</month><year>2021</year></pub-date><volume>6</volume><issue>2</issue><fpage>58</fpage><lpage>62</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Москалева Е.В., Петрова А.Г., Рычкова Л.В., Новикова Е.А., Ваняркина А.С., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Москалева Е.В., Петрова А.Г., Рычкова Л.В., Новикова Е.А., Ваняркина А.С.</copyright-holder><copyright-holder xml:lang="en">Moskaleva E.V., Petrova A.G., Rychkova L.V., Novikova E.A., Vanyarkinа A.S.</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/2729">https://www.actabiomedica.ru/jour/article/view/2729</self-uri><abstract><sec><title>Актуальность</title><p>Актуальность. В механизме иммунного ответа у больных COVID-19 как клеточная, так и гуморальная составляющие по-прежнему остаются недостаточно изученными и отличаются от других респираторных инфекций. Иммунодефицитные состояния и возрастные особенности иммунитета расцениваются как факторы, увеличивающие возможность реинфицирования и предрасположенность к длительному выделению вируса SARS-CoV-2. При этом исследования состояния иммунитета ведутся преимущественно на взрослой популяции, научные работы по изучению данного вопроса у детей единичны. Исследование состояния иммунитета и отслеживание динамики антителообразования к SARS-CoV-2 среди детей является крайне важным, т. к. это позволит оценить иммунную прослойку детей и предупредить возможные осложнения и отдалённые последствия COVID-19, а также спрогнозировать эпидемическую ситуацию в организованных детских коллективах.</p></sec><sec><title>Цель</title><p>Цель: определение состояния иммунной системы после перенесённой новой коронавирусной инфекции у детей г. Иркутска.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Проведён первый этап проспективного когортного клинического исследования состояния параметров иммунного статуса у детей (n = 60) города Иркутска, через месяц после перенесённой новой коронавирусной инфекции в октябре-ноябре 2020 г.</p></sec><sec><title>Результаты</title><p>Результаты. Выявлены отклонения показателей клеточного, гуморального звеньев иммунитета и системы фагоцитоза у детей через месяц после заболевания. У 61,6 % детей определяется значительное снижение активности системы фагоцитоза с выраженным снижением метаболических резервов нейтрофилов.</p></sec><sec><title>Заключение</title><p>Заключение. Наличие выявленных отклонений параметров иммунитета у детей может расцениваться как риск формирования хронических инфекционных процессов и других отдалённых последствий COVID-19. </p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background. The mechanism of the immune response in patients with COVID-19 is still poorly understood and differs from other respiratory infections. Immunodeficiencies and age-related characteristics of immunity can be regarded as factors influencing reinfection and a predisposition to prolonged persistence of SARS-CoV-2. Most of the studies report about post-infection immunity to SARS-CoV-2 for adults and less for children. However, understanding the dynamics of antibody production to SARS-CoV-2 among children as well as other unique features of immune response is extremely important, because this provides to avoid possible complications and long-term outcomes of COVID-19, and predict the epidemic spread of the new coronavirus in the organized groups of children such as kindergartens, schools, study groups and clubs.</p></sec><sec><title>Aim</title><p>Aim: to evaluate the humoral and cellular immunity after SARS-CoV-2 infection in children.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. We reported data of the first phase prospective cohort study of immunity among 60 children living in Irkutsk, Russia within a month after SARS-CoV-2 infection, which took place in October and November 2020.</p></sec><sec><title>Results</title><p>Results. Immunity of children one month after SARS-Cov-2 infection was characterized by suppressed cell-mediated and humoral immunity, and phagocytosis dysfunction. Reduced phagocytosis by neutrophils was noted for 61.6 % of individuals.</p></sec><sec><title>Conclusions</title><p>Conclusions. Children after COVID-19 had impaired immunity to SARS-CoV-2, which may be a predictor of chronic infection and other long-term outcomes of COVID-19. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>дети</kwd><kwd>COVID-19</kwd><kwd>иммунный статус</kwd></kwd-group><kwd-group xml:lang="en"><kwd>children</kwd><kwd>COVID-19</kwd><kwd>immunity</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Авторы выражают благодарность администрации ОГАУЗ «Иркутская городская детская поликлиника № 1» в лице главного врача Кондратенко Владимира Альбертовича и его заместителей Ильюшиной Татьяны Сергеевны и Воржевой Альбины Николаевны за активное содействие.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Камкин Е.Г., Костенко Н.А., Каракулина Е.В. Временные методические рекомендации. 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