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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">veterinary</journal-id><journal-title-group><journal-title xml:lang="ru">Ветеринария сегодня</journal-title><trans-title-group xml:lang="en"><trans-title>Veterinary Science Today</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2304-196X</issn><issn pub-type="epub">2658-6959</issn><publisher><publisher-name>"Veinard"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29326/2304-196X-2021-2-37-97-102</article-id><article-id custom-type="elpub" pub-id-type="custom">veterinary-557</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>КОРОНАВИРУСНАЯ ИНФЕКЦИЯ (COVID-19)</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CORONAVIRUS DISEASE (COVID-19)</subject></subj-group></article-categories><title-group><article-title>Разработка тест-системы для выявления антител к вирусу SARS-CoV-2 в сыворотках крови восприимчивых животных</article-title><trans-title-group xml:lang="en"><trans-title>Development of the test kit for detection of SARS-CoV-2 antibodies in sera of susceptible animals</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7674-639X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Волкова</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Volkova</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Волкова Марина Алексеевна, кандидат биологических наук, ведущий научный сотрудник референтной лаборатории вирусных болезней птиц</p><p>600901, г. Владимир, мкр. Юрьевец</p></bio><bio xml:lang="en"><p>Marina A. Volkova, Candidate of Science (Biology), Leading Researcher, Reference Laboratory for Avian Viral Diseases</p><p>600901, Vladimir, Yur’evets</p></bio><email xlink:type="simple">volkovama@arriah.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/0000-0002-3015-5594</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зиняков</surname><given-names>Н. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Zinyakov</surname><given-names>N. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Зиняков Николай Геннадьевич, кандидат биологических наук, старший научный сотрудник референтной лаборатории вирусных болезней птиц</p><p>Владимир</p></bio><bio xml:lang="en"><p>Nikolay G.  Zinyakov, Candidate of Science (Biology), Senior Researcher, Reference Laboratory for Avian Viral Diseases</p><p>Vladimir</p></bio><email xlink:type="simple">zinyakov@arriah.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/0000-0003-0383-9912</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ярославцева</surname><given-names>П. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Yaroslavtseva</surname><given-names>P. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ярославцева Полина Сергеевна, кандидат биологических наук, научный сотрудник референтной лаборатории вирусных болезней птиц</p><p>Владимир</p></bio><bio xml:lang="en"><p>Polina S. Yaroslavtseva, Candidate of Science (Biology), Researcher, Reference Laboratory for Avian Viral Diseases</p><p>Vladimir</p></bio><email xlink:type="simple">yaroslavtzeva@arriah.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/0000-0002-1659-3256</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чвала</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Chvala</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чвала Илья Александрович, кандидат ветеринарных наук, заместитель директора по НИР и мониторингу</p><p>Владимир</p></bio><bio xml:lang="en"><p>Ilya A. Chvala, Candidate of Science (Veterinary Medicine), Deputy Director for Research and Monitoring</p><p>Vladimir</p></bio><email xlink:type="simple">chvala@arriah.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/0000-0001-9494-8537</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Галкина</surname><given-names>Т. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Galkina</surname><given-names>T. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Галкина Татьяна Сергеевна, кандидат ветеринарных наук, заведующий лабораторией профилактики болезней мелких домашних животных</p><p>Владимир</p></bio><bio xml:lang="en"><p>Tatyana S. Galkina, Candidate of Science (Veterinary Medicine), Head of Laboratory for Pet Disease Prevention</p><p>Vladimir</p></bio><email xlink:type="simple">galkina_ts@arriah.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/0000-0002-1681-5795</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Андрейчук</surname><given-names>Д. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Andreychuk</surname><given-names>D. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Андрейчук Дмитрий Борисович, кандидат биологических наук, заведующий референтной лабораторией вирусных болезней птиц</p><p>Владимир</p></bio><bio xml:lang="en"><p>Dmitry B. Andreychuk, Candidate of Science (Biology), Head of Reference Laboratory for Avian Viral Diseases</p><p>Vladimir</p></bio><email xlink:type="simple">andreychuk@arriah.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «Федеральный центр охраны здоровья животных» (ФГБУ «ВНИИЗЖ»)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal State Budgetary Institution “Federal Center for Animal Health” (FGBI “ARRIAH”)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>01</day><month>07</month><year>2021</year></pub-date><volume>0</volume><issue>2</issue><fpage>97</fpage><lpage>102</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Волкова М.А., Зиняков Н.Г., Ярославцева П.С., Чвала И.А., Галкина Т.С., Андрейчук Д.Б., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Волкова М.А., Зиняков Н.Г., Ярославцева П.С., Чвала И.А., Галкина Т.С., Андрейчук Д.Б.</copyright-holder><copyright-holder xml:lang="en">Volkova M.A., Zinyakov N.G., Yaroslavtseva P.S., Chvala I.A., Galkina T.S., Andreychuk D.B.</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://veterinary.arriah.ru/jour/article/view/557">https://veterinary.arriah.ru/jour/article/view/557</self-uri><abstract><p>Новая коронавирусная инфекция (COVID-19), вызываемая вирусом SARS-CoV-2, стала причиной пандемии, а также была зарегистрирована в популяциях животных – у норок фермерских хозяйств, собак и представителей кошачьих: домашних кошек, львов и тигров. Доказана чувствительность некоторых видов животных к вирусу SARS-CoV-2 при экспериментальном заражении. Для выявления случаев инфицирования животных эффективно применяются серологические методы. В настоящее время для обнаружения антител к коронавирусам используют такие методы, как реакция нейтрализации, иммунофлуоресцентный метод и иммуноферментный анализ. В результате проведенных исследований была разработана тест-система на основе непрямого варианта иммуноферментного анализа для выявления антител к вирусу SARS-CoV-2 в сыворотках крови восприимчивых животных. Использование в качестве антигена очищенного концентрированного инактивированного вируса позволяет выявлять антитела к различным иммунодоминантным белкам (S и N) SARS-CoV-2. Оптимизированы условия постановки реакции, установлен позитивно-негативный порог при исследовании 154 негативных сывороток крови от животных шести видов (хорьков, норок, лис, песцов, кошек и собак). При определении воспроизводимости метода среднее значение коэффициента вариации не превышало 7%, что является допустимым значением. Специфичность и чувствительность относительно реакции нейтрализации при исследовании 30 сывороток крови от хорьков составила 100 и 92,6% соответственно. Высокая диагностическая чувствительность и специфичность, показанные при исследовании 50 сывороток крови от норок, лис, кошек и собак с разным иммунным статусом, позволяют рекомендовать разработанную тест-систему для проведения скрининговых исследований и контроля поствакцинального иммунитета.</p></abstract><trans-abstract xml:lang="en"><p>The novel coronavirus infection COVID-19, caused by the SARS-CoV-2, has triggered a pandemic, and has also been reported in animal populations – in farm minks, dogs and felines: domestic cats, lions and tigers. The susceptibility of some animal species to the SARS-CoV-2 has been proven by experimental infection. Serological methods are effectively used to detect the infection in animals. Currently, methods such as neutralization test, immunofluorescence assay and enzyme-linked immunoassay are used to detect antibodies to coronaviruses. Thanks to these studies, a test kit was developed based on an indirect enzyme-linked immunoassay to detect the SARS-CoV-2 antibodies in sera of susceptible animals. The use of a purified concentrated inactivated virus as an antigen allows the detection of antibodies to various SARS-CoV-2 immunodominant proteins (S and N). The reaction conditions were optimized, and a positive-negative threshold was established by testing of 154 negative sera from animals of six species (ferrets, minks, foxes, arctic foxes, cats and dogs). The method reproducibility analysis showed that the average value of the variation coefficient did not exceed 7%, which is an acceptable value. The specificity and sensitivity of the neutralization test, when testing 30 sera from ferrets was 100 and 92.6%, respectively. The high diagnostic sensitivity and specificity shown by testing of 50 serum samples from minks, foxes, cats and dogs with different immune status, allow us to recommend the developed test kit for screening and monitoring tests and post-vaccination immunity control.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>COVID-19</kwd><kwd>SARS-CoV-2</kwd><kwd>антитела</kwd><kwd>иммуноферментный анализ</kwd></kwd-group><kwd-group xml:lang="en"><kwd>COVID-19</kwd><kwd>SARS-CoV-2</kwd><kwd>antibodies</kwd><kwd>enzyme-linked immunoassay</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена за счет средств ФГБУ «ВНИИЗЖ» в рамках тематики научно-исследовательских работ «Ветеринарное благополучие»</funding-statement><funding-statement xml:lang="en">The work was carried out at the expense of the FGBI “ARRIAH“ within the framework of “Veterinary welfare” research activities</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">Cui J., Li F., Shi Z.-L. 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