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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">ivm</journal-id><journal-title-group><journal-title xml:lang="ru">Международный вестник ветеринарии</journal-title><trans-title-group xml:lang="en"><trans-title>International Journal of Veterinary Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2072-2419</issn><publisher><publisher-name>SpbGUVM Publishing House</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.52419/issn2072-2419.2024.4.14</article-id><article-id custom-type="elpub" pub-id-type="custom">ivm-1500</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>Поствакцинальная дифференциация иммунного ответа, индуцированного цельновирионными, рекомбинантными и субъединичными вакцинами против высокопатогенного гриппа птиц</article-title><trans-title-group xml:lang="en"><trans-title>Post-vaccinal diagnostics of the immune response induced by whole-virion, recombinant and subunit vaccines against highly pathogenic avian influenza</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6474-9171</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тарлавин</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tarlavin</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тарлавин Н.В. – канд. ветеринар. наук, асс. каф. эпизоотологии им. В.П. Урбана</p></bio><bio xml:lang="en"><p>Tarlavin N.V. – Ph.D., Assistant of the Department of Epizootology named after V.P. Urban</p></bio><email xlink:type="simple">tarlav1995@bk.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/0000-0001-9648-2259</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Веретенников</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Veretennikov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Веретенников В.В. – канд. ветеринар. наук, асс. каф. эпизоотологии им. В.П. Урбана</p></bio><bio xml:lang="en"><p>Veretennikov V.V. – Assistant of the Department of Epizootology named after V.P. Urban</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/0000-0002-1589-6300</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Джавадов</surname><given-names>Э. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Javadov</surname><given-names>E. J.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Джавадов Э.Д. – д-р ветеринар. наук, проф. каф. эпизоотологии им. В.П. Урбана</p></bio><bio xml:lang="en"><p>Javadov E.J. – Doctor of Medical Sciences, Professor of the Department of Epizootology named after V.P. Urban</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кудря</surname><given-names>К. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kudrya</surname><given-names>K. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кудря К.С. – лаборант-исследователь </p></bio><bio xml:lang="en"><p>Kudrya K.S.  – laboratory assistant researcher at the</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/0000-0002-2362-2641</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Красков</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kraskov</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Красков Д.А. – асп. каф. эпизоотологии им. В.П. Урбана </p></bio><bio xml:lang="en"><p>Kraskov D.A. – postgraduate student of the Department of Epizootology named after V.P. Urban</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/0009-0002-1553-4737</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дегтярева</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Degtyareva</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дегтярева А.В. – студ.</p></bio><bio xml:lang="en"><p>Degtyareva A.V. – 5th year student of the Faculty of Veterinary Medicine of the</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО СПбГУВМ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>FGBOU VO SPbGUVM</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБУ НИИ гриппа им. А.А. Смородинцева</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Smorodintsev Federal State Budgetary Research Institute of Influenza</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>14</day><month>01</month><year>2025</year></pub-date><volume>0</volume><issue>4</issue><fpage>14</fpage><lpage>19</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Тарлавин Н.В., Веретенников В.В., Джавадов Э.Д., Кудря К.С., Красков Д.А., Дегтярева А.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Тарлавин Н.В., Веретенников В.В., Джавадов Э.Д., Кудря К.С., Красков Д.А., Дегтярева А.В.</copyright-holder><copyright-holder xml:lang="en">Tarlavin N.V., Veretennikov V.V., Javadov E.J., Kudrya K.S., Kraskov D.A., Degtyareva A.V.</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://vetjournal.spbguvm.ru/jour/article/view/1500">https://vetjournal.spbguvm.ru/jour/article/view/1500</self-uri><abstract><p>В статье представлены результаты исследования иммунного ответа цыплят кросса Доминант на вакцинацию отечественными и зарубежными вакцинами против высокопатогенного птичьего гриппа подтипа H5N1. В качестве вакцин использовались препараты: «Флу Протект Н5», «Reassortant Trivalent Vaccine (H5N6(H5Re13)+H5N8(H5Re14)+H7N9(H7Re4)» и «Volvac® B.E.S.T. AI+ND». Для количественного анализа антигенной активности вакцин в сыворотках крови были использованы наборы ID Screen® Influenza H5 Indirect, предназначенные для определения титра антител к гемагглютинину H5, и ID Screen® Influenza A Antibody Competition Multi-species, позволяющие измерить титр антител к NP-белку (нуклеопротеину вируса гриппа А). По итогам исследования вакцина «Reassortant Trivalent Vaccine» продемонстрировала наибольший средний титр антител среди протестированных образцов (10709,5), что указывает на её высокую иммуногенность. Наименьшие показатели эффективности показала вакцина «Volvac® B.E.S.T. AI+ND» с средним титром антител 2627,5. Все три вакцины продемонстрировали высокую защитную активность в отношении вируса гриппа A подтипа H5N1, однако эффективность и устойчивость иммунного ответа варьировались. Проведённое параллельное исследование сывороток крови с использованием тест-наборов, ориентированных на различные антигены вируса гриппа (гемагглютинин и нуклеопротеин), показало возможность дифференциации инфицированной птицы от вакцинированной. Данный подход оказался особенно результативным при применении субъединичных вакцин, позволяя достоверно отличать естественное инфицирование от вакцинного иммунного ответа.</p></abstract><trans-abstract xml:lang="en"><p>The article presents the results of a study of the immune response of chickens of the Dominant cross to vaccination with domestic and foreign vaccines against highly pathogenic avian influenza subtype H5N1. The following drugs were used as vaccines: Flu Protect H5, Reassortant Trivalent Vaccine (H5N6(H5Re13)+H5N8(H5Re14)+H7N9 (H7Re4)" and "Volvac® B.E.S.T. AI+ND". For quantitative analysis of the antigenic activity of vaccines in blood sera, ID Screen® Influenza H5 Indirect kits were used, designed to determine the titer of antibodies to hemagglutinin H5, and ID Screen® Influenza A Antibody Competition Multispecies, allowing to measure the titer of antibodies to NP protein (nucleoprotein of the influenza A virus). According to the results of the study, the Reassortant Trivalent Vaccine demonstrated the highest average antibody titer among the tested samples (10709.5), which indicates its high immunogenicity. The lowest efficiency indicators were shown by the vaccine "Volvac® B.E.S.T. AI+ND" with an average antibody titer of 2627.5. All three vaccines demonstrated high protective activity against influenza A virus of the H5N1 subtype, but the effectiveness and resistance of the immune response varied. A parallel study of blood sera using test kits focused on various influenza virus antigens (hemagglutinin and nucleoprotein) showed the possibility of differentiating an infected bird from a vaccinated one. This approach proved to be particularly effective in the use of subunit vaccines, allowing us to reliably distinguish natural infection from the vaccine immune response.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>высокопатогенный грипп птиц</kwd><kwd>H5N1</kwd><kwd>инактивированные вакцины</kwd><kwd>субъединичные вакцины</kwd><kwd>рекомбинантные вакцины</kwd></kwd-group><kwd-group xml:lang="en"><kwd>highly pathogenic avian influenza</kwd><kwd>H5N1</kwd><kwd>inactivated vaccines</kwd><kwd>subunit vaccines</kwd><kwd>recombinant vaccines</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено за счет гранта Российского научного фонда № 24-76-10044, https://rscf.ru/project/24-76-10044»</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">Актуальные вирусные инфекции в птицеводстве: анализ результатов молекулярной диагностики / Д.Б. 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