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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/issn2072-2419.2025.4.107</article-id><article-id custom-type="elpub" pub-id-type="custom">ivm-1872</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>Разработка мультиплексного ПЦР-анализа в реальном времени для выявления вируса инфекционной бурсальной болезни и вируса инфекционной анемии цыплят</article-title><trans-title-group xml:lang="en"><trans-title>Development of real-time multiplex PCR analysis for detection of infectious bursal disease virus and infectious anemia virus in chickens</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7641-9105</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Семина</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Semina</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. ветеринар. наук, вед. науч. сотр. отдела молекулярно-биологических исследований</p></bio><bio xml:lang="en"><p>Candidate of Veterinary Sciences, Leading Researcher Researcher Department of Molecular Biology Research </p></bio><email xlink:type="simple">anna14.05@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/0000-0001-9741-3247</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дмитриев</surname><given-names>К. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Dmitriev</surname><given-names>K. Y.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. ветеринар. наук, стар. науч. сотр. отдела  молекулярно-биологических исследований</p></bio><bio xml:lang="en"><p>Candidate of Veterinary Sciences, Senior Researcher at the Department of Molecular Biology Research</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Всероссийский научно-исследовательский ветеринарный институт птицеводства (ВНИВИП) – филиал ФГБНУ ФНЦ «ВНИТИП»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>All-Russian Research Veterinary Institute of Poultry Science – branch of the Federal Scientific Center «All-Russian Research and Technological Institute of Poultry»</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>30</day><month>12</month><year>2025</year></pub-date><volume>0</volume><issue>4</issue><fpage>107</fpage><lpage>115</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Семина А.Н., Дмитриев К.Ю., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Семина А.Н., Дмитриев К.Ю.</copyright-holder><copyright-holder xml:lang="en">Semina A.N., Dmitriev K.Y.</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/1872">https://vetjournal.spbguvm.ru/jour/article/view/1872</self-uri><abstract><p>Инфекционная бурсальная болезнь и инфекционная анемия цыплят являются значимыми и актуальными проблемами современной отрасли птицеводства. Вирус инфекционной бурсальной болезни (ИББ) и вирус инфекционной анемии цыплят (ИАЦ) имеют широкое распространение, вызывают серьёзные поражения лимфоидных органов и тканей, в результате которых развиваются тяжёлые иммунодепрессивные состояния приводящие к повышению восприимчивости птиц к другим инфекциям, падению продуктивных показателей, снижению эффективности профилактических мероприятий и росту экономических затрат. Данные болезни в настоящее время в основном протекают в субклинической форме, по вакцинному фону, в ассоциации, сопровождаются возникновением вторичных инфекций, отсутствием характерных клинических признаков, что затрудняет проведение диагностических исследований. Мы разработали мультиплекс ПЦР-анализ в реальном времени, который позволяет одновременно детектировать оба вируса в одной пробе. Данный ПЦР -анализ основан на праймерах, которые предназначены для выявления высоко консервативных перекрывающихся областей геномов вирусов ИББ и ИАЦ, и TaqMan-зондов в качестве системы детекции. Тесты на аналитическую чувствительность при 10-кратных серийных разведениях, показали, что анализ имеет высокий коэффициент детерминации и эффективности. Анализ обладает специфичностью, отсутствием перекрёстной реактивности и неспецифической амплификации. Коэффициенты детерминации, эффективность реакции, низкая внутри- и межсерийная вариабельность сопоставимы с одиночными анализами на вирусы ИББ и ИАЦ. Мультиплексный формат позволяет существенно сократить время анализа, снизить риски возникновения контаминации, сохранив высокую чувствительность и специфичность реакции. Ожидается, что предложенный формат ПЦР-анализа обеспечит возможность быстро идентифицировать вирусы ИББ и ИАЦ, что значительно повысит эффективность диагностических исследований.</p></abstract><trans-abstract xml:lang="en"><p>Infectious bursal disease and infectious anemia of chickens are significant and pressing problems in the modern poultry industry. The infectious bursal disease virus (IBDV) and chicken infectious anemia virus (CIAV) are highly prevalent, causing severe damage to lymphoid organs and tissues. This results in significant immunosuppression, increasing poultry susceptibility to secondary infections, reducing production performance, diminishing the efficacy of preventive measures, and raising economic losses. Currently, these diseases primarily occur in subclinical forms, against a vaccine-induced immunity background, and in co-infections. They are often accompanied by secondary infections and lack distinctive clinical signs, complicating diagnosis. We developed a multiplex real-time PCR assay for simultaneous detection of both viruses in a single sample. The assay employs primers targeting highly conserved overlapping regions of the IBDV and CIAV genomes, with TaqMan probes for detection. Analytical sensitivity testing using 10-fold serial dilutions confirmed high coefficients of determination and amplification efficiency. The assay demonstrates high specificity, with no cross-reactivity or nonspecific amplification. Its performance metrics (determination coefficients, reaction efficiency, and low intra- and inter-assay variability) are comparable to single-assays for IBDV and CIAV. The multiplex format significantly reduces processing time, minimizes contamination risks, and maintains high sensitivity and specificity. This PCR assay is expected to enable rapid and accurate identification of IBDV and CIAV, greatly improving diagnostic efficiency.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>вирус</kwd><kwd>птица</kwd><kwd>инфекция</kwd><kwd>диагностика</kwd><kwd>ПЦР</kwd><kwd>ДНК</kwd><kwd>РНК</kwd><kwd>геном</kwd><kwd>болезнь Гамборо</kwd><kwd>инфекционная анемия цыплят</kwd></kwd-group><kwd-group xml:lang="en"><kwd>virus</kwd><kwd>bird</kwd><kwd>infection</kwd><kwd>diagnosis</kwd><kwd>PCR</kwd><kwd>DNA</kwd><kwd>RNA</kwd><kwd>gene</kwd><kwd>Gumboro disease</kwd><kwd>infectious chicken anaemia</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания Министерства сельского хозяйства Российской Федерации (тема № 1022041100550-5- 4.3.1).</funding-statement><funding-statement xml:lang="en">The work was carried out as part of the state assignment of the Ministry of Agriculture of the Russian Federation (theme No. 1022041100550-5-4.3.1)</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">J. 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