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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">epidemiology</journal-id><journal-title-group><journal-title xml:lang="ru">Эпидемиология и Вакцинопрофилактика</journal-title><trans-title-group xml:lang="en"><trans-title>Epidemiology and Vaccinal Prevention</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-3046</issn><issn pub-type="epub">2619-0494</issn><publisher><publisher-name>«Numicom» LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31631/2073-3046-2017-16-3-50-57</article-id><article-id custom-type="elpub" pub-id-type="custom">epidemiology-276</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>ОФИЦИАЛЬНАЯ ИНФОРМАЦИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>OFFICIAL INFORMATION</subject></subj-group></article-categories><title-group><article-title>MLVA-типирование штаммов Vibrio сcholerae El Tor, выделенных на территории Забайкальского края в период седьмой пандемии</article-title><trans-title-group xml:lang="en"><trans-title>MLVA-typing of Vibrio choleraе El Tor Strains Isolated in Transbaikal Territory during the Seventh Pandemic</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пономарева</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Ponomareva</surname><given-names>A. S.</given-names></name></name-alternatives><email xlink:type="simple">ackozh@mail.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>Миронова</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mironova</surname><given-names>L. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Хунхеева</surname><given-names>Ж. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Khunkheeva</surname><given-names>Zh. Yu.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Мошкин</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Moshkin</surname><given-names>A. B.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><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><email xlink:type="simple">noemail@neicon.ru</email><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» Роспотребнадзора</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Budgetary Healthcare Facility «Irkutsk Antiplague Research Institute» of Federal Service of Surveillance on Consumer, Rights Protection and Human Wellbeing</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФКУЗ «Читинская противочумная станция» Роспотребнадзора</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Budgetary Healthcare Facility «Chita Antiplague Station» of Federal Service of Surveillance on Consumer, Rights Protection and Human Wellbeing</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>20</day><month>06</month><year>2017</year></pub-date><volume>16</volume><issue>3</issue><fpage>50</fpage><lpage>57</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Пономарева А.С., Миронова Л.В., Хунхеева Ж.Ю., Мошкин А.Б., Балахонов С.В., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Пономарева А.С., Миронова Л.В., Хунхеева Ж.Ю., Мошкин А.Б., Балахонов С.В.</copyright-holder><copyright-holder xml:lang="en">Ponomareva A.S., Mironova L.V., Khunkheeva Z.Y., Moshkin A.B., 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://www.epidemvac.ru/jour/article/view/276">https://www.epidemvac.ru/jour/article/view/276</self-uri><abstract><p>Проведено MLVA-типирование (мультилокусный анализ вариабельных тандемных повторов - MLVA - multiple locus variablenumber tandem repeats analysis) по 5 локусам вариабельных тандемных повторов 135 штаммов Vibrio choleraе El Tor, выделенных с 1973 по 2016 год на территории Забайкальского края. Определено, что исследуемые штаммы относятся к 56 MLVA генотипам, входящим в состав четырех кластерных комплексов. В основании каждого кластера лежат MLVA-типы, имеющие наибольшее число однолокусных вариантов (SLV, single locus variant). Анализ закономерностей распространения показал, что первичное появление штаммов с новыми не характерными для территории генотипами в 70-е, 80-е, 90-е годы прошлого столетия происходит в сточных водах с последующим обнаружением данных генотипов, в основном, в р. Ингода и оз. Кенон. Начиная с 2005 года на территории Забайкальского края доминируют штаммы, впервые выделенные из р. Борзя и оз. Харанор и обнаруживаемые в разное время в этих водоемах и реках Ингода, Кенон, Аргунь. Обнаружение групп изолятов с идентичным или сходным MLVA-профилем, входящих в кластерные комплексы, свидетельствует об их длительном сохранении в отдельных экологических нишах, при этом в процессе адаптации аллельные профили штаммов подвергаются незначительной трансформации по наиболее вариабельным локусам. Идентификация V. choleraе El Tor с существенно отличающейся от доминирующих клонов структурой локусов вариабельных тандемных повторов может служить доказательством их заносного происхождения.</p></abstract><trans-abstract xml:lang="en"><p>Cholera remains a topical infection in the world, which determines the high risk of importation of the pathogen on the territory of the Russian Federation. MLVA-typing of 135 strains at 5 tandem repeats loci was carried outin order to study the clonal-population structure of the isolated from 1973 to 2016 on the Transbaikal territory V. cholerae. Analysis of the distribution patterns showed that the primary emergence of strains with new atypical for the territory genotypes in 1970s, 1980s, 1990s, occurred in sewage waters with the subsequent detection of the given genotypes generally in Ingoda river and Kenon lake. The strains firstly isolated from Borzya river and Haranor lake and found out at various times in Ingoda river and Kenon lake, Chita, Argun rivers, Haranor lake and Borzya river have been dominating since 2005 in Transbaikal territory. Finding groups of isolates with identical or similar MLVA-profile appeared in cluster complexes evidence of their long-term preservation in specific ecological niches, strains’ allelic profiles undergo minor transformation on the most variable loci in the process of adaptation. Identification of V. cholerae El Tor that variable tandem repeat loci structure materially differs from those of the dominant clones may serve as proof of their invasive origin.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Vibrio cholerae</kwd><kwd>эпидемиологическое благополучие</kwd><kwd>аллельный профиль</kwd><kwd>популяционная структура</kwd><kwd>MLVA-типирование</kwd><kwd>vibrio cholerae</kwd><kwd>epidemiological well-being</kwd><kwd>allelic profile</kwd><kwd>population structure</kwd><kwd>MLVA-typing</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">Онищенко Г.Г., Москвитина Э.А., Кругликов В.Д., Титова С.В., Адаменко О.Л., Водопьянов А.С. и др. Эпидемиологический надзор за холерой в России в период седьмой пандемии. 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