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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">ecodag</journal-id><journal-title-group><journal-title xml:lang="ru">Юг России: экология, развитие</journal-title><trans-title-group xml:lang="en"><trans-title>South of Russia: ecology, development</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1992-1098</issn><issn pub-type="epub">2413-0958</issn><publisher><publisher-name>State Institute of Applied Ecology of the Republic of Dagestan</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18470/1992-1098-2023-3-95-102</article-id><article-id custom-type="elpub" pub-id-type="custom">ecodag-2912</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>ЭКОЛОГИЯ МИКРООРГАНИЗМОВ</subject></subj-group></article-categories><title-group><article-title>Изучение течения инфекционного процесса в легких кошек при экспериментальном заражении коронавирусом SARS-CoV-2</article-title><trans-title-group xml:lang="en"><trans-title>The study of the course of the infectious process in lungs of cats during experimental infection with SARS-CoV-2</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7403-3089</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Филиппова</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Filippova</surname><given-names>A. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Анастасия Ю. Филиппова</p><p>630117, г. Новосибирск, Новосибирская обл., ул. Тимакова, д. 2</p></bio><bio xml:lang="en"><p>Anastasia Yu. Filippova</p><p>2 Pirogova St, Novosibirsk, 630090</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5364-9159</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Федотова</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Fedotova</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Марина С. Федотова</p><p>630117, г. Новосибирск, Новосибирская обл., ул. Тимакова, д. 2</p></bio><bio xml:lang="en"><p>Marina S. Fedotova</p><p>2 Pirogova St, Novosibirsk, 630090</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3677-3668</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кононова</surname><given-names>Ю. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kononova</surname><given-names>Yu. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юлия В. Кононова</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Yulia V. Kononova</p><p>Novosibirsk</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6619-2135</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шестопалова</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shestopalova</surname><given-names>L. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лидия В. Шестопалова</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Lidia V. Shestopalova</p><p>2 Pirogova St, Novosibirsk, 630090</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3945-5339</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гуляева</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Gulyaeva</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Марина А. Гуляева, кандидат биологических наук, доцент, научный сотрудник</p><p>630117, г. Новосибирск, Новосибирская обл., ул. Тимакова, д. 2</p><p>Тел. +79529136513</p></bio><bio xml:lang="en"><p>Marina A. Gulyaeva, PhD in Biology, Associate Professor, Research Scientist</p><p>2 Pirogova St, Novosibirsk, 630090</p></bio><email xlink:type="simple">mgulyaeva@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Федеральный исследовательский центр фундаментальной и трансляционной медицины; Новосибирский государственный университет<country>Россия</country></aff><aff xml:lang="en">Federal Research Center for Fundamental and Translational Medicine; Novosibirsk State University<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Федеральный исследовательский центр фундаментальной и трансляционной медицины<country>Россия</country></aff><aff xml:lang="en">Federal Research Center for Fundamental and Translational Medicine<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">Новосибирский государственный университет<country>Россия</country></aff><aff xml:lang="en">Novosibirsk State University<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>02</day><month>11</month><year>2023</year></pub-date><volume>18</volume><issue>3</issue><fpage>95</fpage><lpage>102</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Филиппова А.Ю., Федотова М.С., Кононова Ю.В., Шестопалова Л.В., Гуляева М.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Филиппова А.Ю., Федотова М.С., Кононова Ю.В., Шестопалова Л.В., Гуляева М.А.</copyright-holder><copyright-holder xml:lang="en">Filippova A.Y., Fedotova M.S., Kononova Y.V., Shestopalova L.V., Gulyaeva M.A.</copyright-holder><license 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://ecodag.elpub.ru/ugro/article/view/2912">https://ecodag.elpub.ru/ugro/article/view/2912</self-uri><abstract><p>Цель. Изучить и охарактеризовать особенности протекания коронавирусной инфекции на модели домашней кошки, а также на основе полученных данных оценить опасность SARS-CoV-2, выделенного на территории России, для данных животных, с возможностью экстраполировать на диких представителей семейства кошачьих.Материал и методы. Для проведения исследования модельные животные – Felis silvestris catus, были поделены на 3 группы. Наработанный на культуре клеток Vero E6 штамм вируса SARS-Cov-2/human/RUS/Nsk-FRCFTM-1/2020 вводили интраназально в объеме 200 мкл, 105ТСID50/мл, первой и второй группам. Животных первой группы выводили из эксперимента и отбирали фрагменты легких на 6 сутки, второй – на 14 сутки. Третьей группе – контрольной, вводили физиологический раствор в эквивалентном объеме. Гистологические срезы, окрашенные гематоксилином и эозином и по Маллори, исследовали на наличие патоморфологических изменений в тканях легкого методом световой микроскопии.Результаты. Согласно полученным результатам, патоморфологическая картина в легких экспериментальных животных указывает на течение интерстициальной пневмонии как на 6, так и на 14 сутки. Кроме того, было установлено, что к 14 суткам в легких начинает визуализироваться разрастание фиброзной ткани, свидетельствующее о начавшихся в легких регенеративных процессах.Заключение. В результате исследования было показано, что кошки восприимчивы к вирусу SARS-CoV-2, течение инфекции сопровождается клиническими проявленииями, а патоморфологическая картина в легких свидетельствует о развитии интерстициальной пневмонии.</p></abstract><trans-abstract xml:lang="en"><p>Aim. To study and characterise the features of the course of coronavirus infection in a domestic cat model, as well as to assess the danger of SARSCoV-2 isolated in Russia for these animals based on the data obtained, with the possibility of extrapolating to wild felines.Material and Methods. For the study, model animals – Felis silvestris catus – were divided into 3 groups. The viral strain of SARS-Cov-2/human/RUS/Nsk-FRCFTM-1/2020 was cultivated on Vero E6 cell culture and then administered intranasally in a volume of 200 μl, 105TCID50/ml, to animals from the first and second groups. Model animals from the first group were euthanized and lung fragments were taken on 6–day post infection (d.p.i.), animals from the second group – on 14 d.p.i. The third group – the control group, was injected with saline in an equivalent volume. Histological sections colored with hematoxylin and eosin were investigated for pathomorphological changes in lung tissue using light microscopy.Results. According to the obtained results the pathomorphological picture in the lungs of experimental animals indicates the course of interstitial pneumonia for both 6 and 14 d.p.i. In addition, it has been determined that by 14 d.p.i. the growth of fibrous tissue in the lungs begins to be visualised, indicating the beginning of light regenerative processes.Conclusion. The study showed that cats are susceptible to the SARS-CoV-2 virus, and these model animals are characterized by the emergence of clinical manifestations and morphological patterns in the lungs, which correspond to interstitial pneumonia.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Коронавирус</kwd><kwd>SARS‐CoV‐2</kwd><kwd>COVID‐19</kwd><kwd>домашние животные</kwd><kwd>кошки</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Coronavirus</kwd><kwd>SARS‐CoV‐2</kwd><kwd>COVID‐19</kwd><kwd>pets</kwd><kwd>cats</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Исследование выполнено при поддержке гранта Российского научного фонда No 22-24-00199, https://rscf.ru/project/22-24-00199/.</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>This study was supported by the Russian Science Foundation according to research project No 22-24-00199, https://rscf.ru/project/22-24-00199/.</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">Andersen K.G., Rambaut A., Lipkin W.I. et al. 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