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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">microbe</journal-id><journal-title-group><journal-title xml:lang="ru">Проблемы особо опасных инфекций</journal-title><trans-title-group xml:lang="en"><trans-title>Problems of Particularly Dangerous Infections</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0370-1069</issn><issn pub-type="epub">2658-719X</issn><publisher><publisher-name>Russian Research Anti-Plague Institute “Microbe”</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21055/0370-1069-2022-4-110-116</article-id><article-id custom-type="elpub" pub-id-type="custom">microbe-1769</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>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Пространственная MLVA25-генотипическая структура Yersinia pestis ssp. pestis  в трансграничном Сайлюгемском природном очаге чумы</article-title><trans-title-group xml:lang="en"><trans-title>Yersinia pestis ssp. pestis Spatial MLVA25 Genotypic Structure in the Transboundary Saylyugem Natural Plague Focus</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7665-4367</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ярыгина</surname><given-names>М. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Yarygina</surname><given-names>M. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ярыгина Марина Борисовна</p><p>Российская Федерация, 664047, Иркутск, ул. Трилиссера, 78</p></bio><bio xml:lang="en"><p>Marina B. Yarygina</p><p>8, Trilissera St., Irkutsk, 664047, Russian Federation</p><p> </p></bio><email xlink:type="simple">migmarina78@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/0000-0003-0959-4987</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Витязева</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Vityazeva</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Российская Федерация, 664047, Иркутск, ул. Трилиссера, 78</p></bio><bio xml:lang="en"><p>8, Trilissera St., Irkutsk, 664047, Russian Federation</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/0000-0003-1947-5252</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Корзун</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Korzun</surname><given-names>V. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Российская Федерация, 664047, Иркутск, ул. Трилиссера, 78</p></bio><bio xml:lang="en"><p>8, Trilissera St., Irkutsk, 664047, Russian Federation</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>Тунгалаг</surname><given-names>Х.</given-names></name><name name-style="western" xml:lang="en"><surname>Tungalag</surname><given-names>H.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Монголия, 18131, г. Улаанбаатар, Сонгинохайрхан микрорайон, 20 хоро</p></bio><bio xml:lang="en"><p>Ulan-Bator, Mongolia, 18131.</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Цэрэнноров</surname><given-names>Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Tserennorov</surname><given-names>D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Монголия, 18131, г. Улаанбаатар, Сонгинохайрхан микрорайон, 20 хоро</p></bio><bio xml:lang="en"><p>Ulan-Bator, Mongolia, 18131.</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/0000-0003-4201-5828</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Балахонов</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Balakhonov</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Российская Федерация, 664047, Иркутск, ул. Трилиссера, 78</p></bio><bio xml:lang="en"><p>8, Trilissera St., Irkutsk, 664047, Russian Federation</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФКУЗ «Иркутский научно-исследовательский противочумный институт Сибири и Дальнего Востока»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Irkutsk Research Anti-Plague Institute of Siberia and Far East</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный центр зоонозных инфекций</institution><country>Монголия</country></aff><aff xml:lang="en"><institution>National Centre of Zoonotic Infections</institution><country>Mongolia</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>13</day><month>02</month><year>2023</year></pub-date><volume>0</volume><issue>4</issue><fpage>110</fpage><lpage>116</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ярыгина М.Б., Витязева С.А., Корзун М.В., Тунгалаг Х., Цэрэнноров Д., Балахонов С.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Ярыгина М.Б., Витязева С.А., Корзун М.В., Тунгалаг Х., Цэрэнноров Д., Балахонов С.В.</copyright-holder><copyright-holder xml:lang="en">Yarygina M.B., Vityazeva S.A., Korzun V.M., Tungalag H., Tserennorov D., Balakhonov S.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://journal.microbe.ru/jour/article/view/1769">https://journal.microbe.ru/jour/article/view/1769</self-uri><abstract><p>Для осуществления эпидемиологического надзора за чумой в Сайлюгемском природном очаге совместно с монгольскими специалистами внедрены и применяются современные молекулярно-генетические методы диагностики и типирования Yersinia pestis ssp. pestis в полевом и клиническом материале. Цель работы – изучить пространственную генотипическую структуру Y. pestis ssp. pestis в трансграничном Сайлюгемском природном очаге чумы методом MLVA25‑типирования. Материалы и методы. Проведено MLVA25‑типирование 160 штаммов Y. pestis ssp. pestis, изолированных в Сайлюгемском природном очаге чумы в 2012–2021 гг. Построение филогенетического древа осуществляли методами UPGMA и MST. Результаты и обсуждение. На основе кластерного анализа 25 VNTR-локусов штаммы Y. pestis ssp. pestis, изолированные в трансграничном Сайлюгемском природном очаге чумы, дифференцированы на 15 MLVA‑типов. Установлено, что исследуемые штаммы образуют однородный комплекс MLVA25‑типов без выраженной географической структурированности их по семи пространственным группам. При анализе частоты встречаемости числа тандемных повторов по трем вариабельным локусам у штаммов Y. pestis ssp. pestis выявлено, что между выборками из монгольской и российской частей очага наблюдаются значимые различия. Наиболее выраженные различия пространственной генотипической структуры прослеживаются по локусу yp4280ms62.</p></abstract><trans-abstract xml:lang="en"><p>Advanced molecular-genetic methods for the diagnosis and typing of Yersinia pestis ssp. pestis in the field and clinical material are used for epidemiological surveillance of plague in the Saylyugem natural focus. The aim of the work was to study the spatial genotypic structure of Y. pestis ssp. pestis in the transboundary Saylyugem natural plague focus using MLVA25 typing. Materials and methods. The MLVA25 typing of 160 strains of Y. pestis ssp. Pestis isolated in the Saylyugem natural plague focus in 2012–2021 was carried out. Phylogenetic tree construction was performed with the help of UPGMA and MST methods. Results and discussion. The Y. pestis ssp. pestis strains isolated from the Saylyugem natural plague focus were differentiated into 15 MLVA types by the 25 VNTR loci cluster analysis. The studied strains form a homogeneous complex of MLVA25 types without marked geographical distribution across seven spatial groups. The analysis of the frequency of occurrence of the tandem repeats number for three variable loci of Y. pestis ssp. pestis strains shows the significant differences between the samples from the Mongolian and Russian parts of the Saylyugem natural plague focus. The most pronounced differences in spatial genotypic structure are traced through the yp4280ms62 locus.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Yersinia pestis</kwd><kwd>MLVA25‑типирование</kwd><kwd>Сайлюгемский природный очаг чумы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Yersinia pestis</kwd><kwd>MLVA25-typing</kwd><kwd>Saylyugem natural plague focus</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">Zhao S.S., Pulati Y., Yin X.P., Li W., Wang B.J., Yang K., Chen C.F., Wang Y.Z. Wildlife plague surveillance near the China-Kazakhstan border: 2012–2015. Transbound. Emerg. Dis. 2017; 64(6):e48–e51. DOI: 10.1111/tbed.12603.</mixed-citation><mixed-citation xml:lang="en">Zhao S.S., Pulati Y., Yin X.P., Li W., Wang B.J., Yang K., Chen C.F., Wang Y.Z. Wildlife plague surveillance near the China-Kazakhstan border: 2012–2015. Transbound. Emerg. 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