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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">10.21055/0370-1069-2023-3-99-107</article-id><article-id custom-type="elpub" pub-id-type="custom">microbe-1861</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>Генотипическая характеристика клональных комплексов CTX–VPI+ Vibrio cholerae О1, обнаруживаемых в водоемах Ростовской области</article-title><trans-title-group xml:lang="en"><trans-title>Genotypic Characteristics of CTX–VPI+ Clonal Complexes of Vibrio cholerae O1 Found in Water Bodies of the Rostov Region</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9216-7777</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Монахова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Monakhova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Монахова Елена Владимировна</p><p>Российская Федерация, 344002, Ростов-на-Дону, ул. М . Горького, 117/40</p></bio><bio xml:lang="en"><p>117/40, M. Gor’kogo St., Rostov-on-Don, 344002, Russian Federation</p></bio><email xlink:type="simple">monakhova_ev@antiplague.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/0000-0003-0550-2221</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Носков</surname><given-names>А. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Noskov</surname><given-names>A. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Российская Федерация, 344002, Ростов-на-Дону, ул. М . Горького, 117/40</p></bio><bio xml:lang="en"><p>117/40, M. Gor’kogo St., Rostov-on-Don, 344002, Russian Federation</p></bio><email xlink:type="simple">plague@aaanet.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/0000-0002-6540-2778</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кругликов</surname><given-names>В. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Kruglikov</surname><given-names>V. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Российская Федерация, 344002, Ростов-на-Дону, ул. М . Горького, 117/40</p></bio><bio xml:lang="en"><p>117/40, M. Gor’kogo St., Rostov-on-Don, 344002, Russian Federation</p></bio><email xlink:type="simple">plague@aaanet.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/0000-0002-9056-3231</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Водопьянов</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Vodop’yanov</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Российская Федерация, 344002, Ростов-на-Дону, ул. М . Горького, 117/40</p></bio><bio xml:lang="en"><p>117/40, M. Gor’kogo St., Rostov-on-Don, 344002, Russian Federation</p></bio><email xlink:type="simple">plague@aaanet.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/0000-0002-0008-4705</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Селянская</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Selyanskaya</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Российская Федерация, 344002, Ростов-на-Дону, ул. М . Горького, 117/40</p></bio><bio xml:lang="en"><p>117/40, M. Gor’kogo St., Rostov-on-Don, 344002, Russian Federation</p></bio><email xlink:type="simple">plague@aaanet.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/0000-0002-6003-4283</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Меньшикова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Men’shikova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Российская Федерация, 344002, Ростов-на-Дону, ул. М . Горького, 117/40</p></bio><bio xml:lang="en"><p>117/40, M. Gor’kogo St., Rostov-on-Don, 344002, Russian Federation</p></bio><email xlink:type="simple">plague@aaanet.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/0000-0003-4254-3313</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ежова</surname><given-names>М. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Ezhova</surname><given-names>M. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Российская Федерация, 344002, Ростов-на-Дону, ул. М . Горького, 117/40</p></bio><bio xml:lang="en"><p>117/40, M. Gor’kogo St., Rostov-on-Don, 344002, Russian Federation</p></bio><email xlink:type="simple">plague@aaanet.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/0000-0003-0868-6791</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Непомнящая</surname><given-names>Н. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Nepomnyashchaya</surname><given-names>N. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Российская Федерация, 344002, Ростов-на-Дону, ул. М . Горького, 117/40</p></bio><bio xml:lang="en"><p>117/40, M. Gor’kogo St., Rostov-on-Don, 344002, Russian Federation</p></bio><email xlink:type="simple">plague@aaanet.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Швиденко</surname><given-names>И. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Shvidenko</surname><given-names>I. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Российская Федерация, 410005, Саратов, ул. Университетская, 46</p></bio><bio xml:lang="en"><p>46, Universitetskaya St., Saratov, 410005, Russian Federation</p></bio><email xlink:type="simple">rusrapi@microbe.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9996-4189</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Подойницына</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Podoinitsyna</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Российская Федерация, 344002, Ростов-на-Дону, ул. М . Горького, 117/40</p></bio><bio xml:lang="en"><p>117/40, M. Gor’kogo St., Rostov-on-Don, 344002, Russian Federation</p></bio><email xlink:type="simple">plague@aaanet.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/0000-0002-7178-8021</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Писанов</surname><given-names>Р. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Pisanov</surname><given-names>R. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Российская Федерация, 344002, Ростов-на-Дону, ул. М . Горького, 117/40</p></bio><bio xml:lang="en"><p>117/40, M. Gor’kogo St., Rostov-on-Don, 344002, Russian Federation</p></bio><email xlink:type="simple">plague@aaanet.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФКУЗ «Ростовский-на-Дону научно-исследовательский противочумный институт»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Rostov-on-Don Research Anti-Plague Institute</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФКУН «Российский научно-исследовательский противочумный институт «Микроб»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russian Research Anti-Plague Institute “Microbe”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>04</day><month>10</month><year>2023</year></pub-date><volume>0</volume><issue>3</issue><fpage>99</fpage><lpage>107</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Монахова Е.В., Носков А.К., Кругликов В.Д., Водопьянов А.С., Селянская Н.А., Меньшикова Е.А., Ежова М.И., Непомнящая Н.Б., Швиденко И.Г., Подойницына О.А., Писанов Р.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Монахова Е.В., Носков А.К., Кругликов В.Д., Водопьянов А.С., Селянская Н.А., Меньшикова Е.А., Ежова М.И., Непомнящая Н.Б., Швиденко И.Г., Подойницына О.А., Писанов Р.В.</copyright-holder><copyright-holder xml:lang="en">Monakhova E.V., Noskov A.K., Kruglikov V.D., Vodop’yanov A.S., Selyanskaya N.A., Men’shikova E.A., Ezhova M.I., Nepomnyashchaya N.B., Shvidenko I.G., Podoinitsyna O.A., Pisanov R.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/1861">https://journal.microbe.ru/jour/article/view/1861</self-uri><abstract><p>Цель работы – выявление генотипических особенностей клональных комплексов, образуемых CTX–VPI+ штаммами холерных вибрионов, выделенными в разные годы из водоемов Ростовской области, на основе биоинформационного анализа их полногеномных сиквенсов (WGSs).</p><sec><title>Материалы и методы</title><p>Материалы и методы. Полногеномное секвенирование выполняли на платформе MiSeq (Illumina), идентификацию в WGSs генетических детерминант и биоинформационный анализ – с использованием программ BioEdit, BLASTN, BLASTP, CARD, Vector NTI.</p></sec><sec><title>Результаты и обсуждение</title><p>Результаты и обсуждение. В каждой группе изолятов 2002, 2005, 2007, 2020, 2021, 2022 гг. штаммы были практически идентичными и обнаруживались в разных точках отбора проб воды в течение более или менее длительных периодов (от 3 недель до 2 месяцев). Биоинформационный анализ WGSs представителей этих групп показал их разделение на 4 кластера, которые можно рассматривать как отдельные клональные комплексы, отличающиеся рядом характерных генетических маркеров: 1) изоляты 2002 г., содержащие один SNP в регуляторном гене rpoS; 2) штаммы 2007 г., несущие тандемно дуплицированный профаг preCTX; 3) штаммы, выделенные в 2020 г. в Ростове-на-Дону и в 2005 г. во время эпидосложнений в Каменском районе Ростовской области, которые имели «гибридный» остров патогенности, включающий кластер системы секреции 3-го типа и nan-nag-область острова VPI-2, а в гене rpoS присутствовало 9 SNP; 4) штаммы 2021 и 2022 гг. и единичный изолят 2018 г., содержащие делецию 9 п.н. в гене коллагеназы vchC. Несмотря на выявленные различия, представители всех клональных комплексов обладали достаточными наборами интактных детерминант факторов патогенности/персистенции для реализации вирулентных свойств и для обеспечения способности к выживанию в водоемах. Обнаружение в поверхностных водоемах клональных комплексов потенциально патогенных штаммов свидетельствует о периодическом создании благоприятных условий для их продолжительной циркуляции, что подчеркивает значимость постоянного мониторинга за холерными вибрионами на территории России.</p></sec></abstract><trans-abstract xml:lang="en"><p>The aim of the work was to identify genotypic features of clonal complexes formed by CTX–VPI+ strains of Vibrio cholerae isolated from water bodies of the Rostov Region in different years, based on bioinformatics analysis of their whole genome sequences (WGSs).</p><sec><title>Materials and methods</title><p>Materials and methods. Whole genome sequencing was performed on the MiSeq (Illumina) platform; identification of genetic determinants in WGSs and bioinformatics analysis – by means of BioEdit, BLASTN, BLASTP, CARD, Vector NTI software packages.</p></sec><sec><title>Results and discussion</title><p>Results and discussion. The strains were almost identical in each group of 2002-, 2005-, 2007-, 2020-, 2021-, and 2022-isolates and were found at different points of water sampling over a longer or shorter periods of time (from 3 weeks to 2 months). Bioinformatics analysis of WGSs of representative strains divided them into 4 clusters, which can be considered as separate clonal complexes sharing a number of characteristic genetic markers: 1) 2002-isolates containing one SNP in regulatory rpoS gene; 2) 2007-strains carrying tandemly duplicated preCTX prophage; 3) strains isolated in 2020 in Rostov-on-Don and in 2005, during epidemiological complications in the Kamensk district of the Rostov Region, which had a “hybrid” pathogenicity island including the cluster of type 3 secretion system and the nan-nag region of the VPI-2 island, and 9 SNPs in rpoS gene; 4) 2021- and 2022-strains and a single 2018-isolate containing a 9 bp deletion in vchC collagenase gene. Despite the revealed differences, representatives of all clonal complexes possessed sufficient sets of intact determinants of pathogenicity/persistence factors to realize virulent properties and ability to survive in water bodies. Detection of clonal complexes of potentially pathogenic strains in surface water bodies indicates occasional emergence of favorable conditions for their long-term circulation, which emphasizes the importance of constant monitoring of V. cholerae in the territory of Russia.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>Vibrio cholerae</kwd><kwd>клональные комплексы</kwd><kwd>полногеномное секвенирование</kwd><kwd>биоинформационный анализ</kwd><kwd>факторы патогенности/персистенции</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Vibrio cholerae</kwd><kwd>clonal complexes</kwd><kwd>whole genome sequencing</kwd><kwd>bioinformatics analysis</kwd><kwd>pathogenicity/persistence factors</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">Sakib S.N., Reddi G., Almagro-Moreno S. Environmental role of pathogenic traits in Vibrio cholerae. J. 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