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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.2026-11.3.25</article-id><article-id custom-type="elpub" pub-id-type="custom">actabiomedica-6194</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>ЭПИДЕМИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>EPIDEMIOLOGY</subject></subj-group></article-categories><title-group><article-title>Влияние пандемии COVID-19 на динамику госпитализаций детей в Чите с острыми кишечными инфекциями, в том числе с ротавирусной инфекцией</article-title><trans-title-group xml:lang="en"><trans-title>COVID-19 pandemic impact on pediatric hospitalization dynamics for acute intestinal infections (including rotavirus) in Chita</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8389-8730</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Андреева</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Andreeva</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Андреева Елена Владимировна – кандидат медицинских наук, доцент кафедры поликлинической педиатрии с курсом медицинской реабилитации.</p><p>672000, Чита, Горького, 39а</p></bio><bio xml:lang="en"><p>Elena V. Andreeva – Cand. Sc. (Med), docent of the Department of polyclinic.</p><p>Gorky St., 39a, Chita 672000</p></bio><email xlink:type="simple">drelena11@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/0000-0003-2109-4643</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мироманова</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Miromanova</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мироманова Наталья Анатольевна – доктор медицинских наук, заведующая кафедры детских инфекционных болезней, доцент.</p><p>672000, Чита, Горького, 39а</p></bio><bio xml:lang="en"><p>Nataliya A. Miromanova – Dr. Sc. (Med), Head of the Department of Children’s Infectious Diseases.</p><p>Gorky St., 39a, Chita 672000</p></bio><email xlink:type="simple">detinf-chita@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/0009-0001-5037-6941</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Брылёва</surname><given-names>Л. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Bry`lyova</surname><given-names>L. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Брылёва Людмила Ивановна – заведующая детским инфекционным отделением.</p><p>672042, Чита, ул. Труда, 21</p></bio><bio xml:lang="en"><p>Lyudmila I. Bry`lyova – Head of the Children’s Infectious Diseases Department.</p><p>Gorky St., 39a, Chita 672000; Trud St., 21, Chita 672042</p></bio><email xlink:type="simple">bli@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Читинская государственная медицинская академия» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Chita State Medical Academy of the Ministry of Health of the Russian Federation</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Государственное учреждение здравоохранения «Краевая клиническая инфекционная больница»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Regional Clinical Infectious Diseases Hospital</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>02</day><month>08</month><year>2026</year></pub-date><volume>11</volume><issue>3</issue><fpage>212</fpage><lpage>221</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Андреева Е.В., Мироманова Н.А., Брылёва Л.И., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Андреева Е.В., Мироманова Н.А., Брылёва Л.И.</copyright-holder><copyright-holder xml:lang="en">Andreeva E.V., Miromanova N.A., Bry`lyova 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/6194">https://www.actabiomedica.ru/jour/article/view/6194</self-uri><abstract><sec><title>Обоснование</title><p>Обоснование. Пандемия COVID-19 и сопутствующие противоэпидемические меры оказали глобальное влияние на циркуляцию респираторных и кишечных вирусов. Изучение динамики госпитализаций с острыми кишечными инфекциями (ОКИ) в конкретном регионе в разные периоды пандемии позволяет оценить эффект этих мер и выявить особенности восстановления эпидпроцесса.</p></sec><sec><title>Цель</title><p>Цель. Оценить влияние пандемии COVID-19 на динамику и структуру госпитализаций детей с ОКИ, в том числе с ротавирусной инфекцией (РВИ), в Чите за 2014–2023 гг.</p></sec><sec><title>Методы</title><p>Методы. Проведён ретроспективный анализ данных статистической отчётности Краевой клинической инфекционной больницы г. Читы. Проанализированы 11520 случаев госпитализации детей 0–17 лет с ОКИ за 10-летний период. Использовались методы описательной и непараметрической статистики, анализ динамических рядов, критерий χ², коэффициент φ, корреляционный анализ Спирмена. Обработка данных выполнена в IBM SPSS Statistics 26.</p></sec><sec><title>Результаты</title><p>Результаты. В период разгара пандемии (2020–2021 гг.) число госпитализаций с ОКИ снизилось в 1,6 раза (χ² = 9,680; p = 0,002), с РВИ – в 1,4 раза (χ² = 23,955; p &lt; 0,001) относительно допандемийного периода. Структура ОКИ значимо не изменилась: доля РВИ от всех случаев составила 24,48 % (до), 23,68 % (разгар) и 22,87 % (после) (p &gt; 0,05). Выявлена прямая тесная связь между общим числом госпитализаций с ОКИ и РВИ (r = 0,789; p = 0,008). После отмены ограничений в 2022–2023 гг. наблюдался рост госпитализаций.</p></sec><sec><title>Заключение</title><p>Заключение. Противоэпидемические меры в период пандемии COVID-19 привели к значимому снижению числа госпитализаций с ОКИ и РВИ, не повлияв на их этиологическую структуру. Последующий рост заболеваемости после отмены ограничений подтверждает восстановление эпидемического процесса, что подчеркивает необходимость постоянного эпидемиологического мониторинга и расширения программ вакцинопрофилактики.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background. The COVID-19 pandemic and the associated non-pharmaceutical interventions (NPIs) significantly altered the global epidemiology of various infectious diseases. Studying the dynamics of hospitalizations for acute intestinal infections in a specific region during different periods of the pandemic allows for assessment of the effect of these measures and identification of patterns in the recovery of the epidemic process. Aim. To evaluate the impact of the COVID-19 pandemic on the dynamics and structure of hospitalizations of children with acute intestinal infections (AII), including rotavirus infection (RVI), in Chita over the period 2014–2023.</p></sec><sec><title>Materials and Methods</title><p>Materials and Methods. A retrospective analysis of statistical reporting data from the Regional Clinical Infectious Diseases Hospital in Chita was conducted. A total of 11,520 hospitalization cases of children aged 0–17 years with AII over a 10-year period were analyzed. Descriptive and non-parametric statistical methods were used, including time series analysis, the χ2 test, the φ-coefficient, and Spearman’s correlation analysis. Data processing was performed using IBM SPSS Statistics 26.</p></sec><sec><title>Results</title><p>Results. During the peak pandemic period (2020–2021), the number of hospitalizations for AII decreased 1.6-fold (χ2 = 9.680; p = 0.002), and for RVI – 1.4-fold (χ2 = 23.955; p &lt; 0.001) compared to the pre-pandemic period. The etiological structure of AII did not change significantly: the proportion of RVI among all cases was 24.48 % (pre-pandemic), 23.68 % (peak pandemic), and 22.87 % (post-pandemic) (p &gt; 0.05). A strong positive correlation was found between the total number of AII hospitalizations and RVI cases (r = 0.789; p = 0.008). In the post-restriction period (2022–2023), an increase in hospitalizations was observed.</p></sec><sec><title>Conclusions</title><p>Conclusions. The anti-epidemic measures during the COVID-19 pandemic led to a significant reduction in hospitalizations for AII and RVI without affecting their etiological structure. The subsequent increase in incidence following the lifting of restrictions confirms the restoration of the epidemic process, which underscores the need for ongoing epidemiological surveillance and the expansion of vaccination programs.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>острые кишечные инфекции</kwd><kwd>ротавирусная инфекция</kwd><kwd>пандемия COVID-19</kwd><kwd>дети</kwd><kwd>госпитализация</kwd><kwd>эпидемиология</kwd><kwd>Забайкальский край</kwd><kwd>ретроспективное исследование</kwd><kwd>SARS-CoV-2</kwd></kwd-group><kwd-group xml:lang="en"><kwd>acute intestinal infections</kwd><kwd>rotavirus infection</kwd><kwd>COVID-19 pandemic</kwd><kwd>children</kwd><kwd>hospitalization</kwd><kwd>epidemiology</kwd><kwd>Zabaykalsky Krai</kwd><kwd>retrospective study</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">Буханцова Е.С., Ковалев О.Б., Шамшева О.В., Молочкова О.В., Каменская И.Б. 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