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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">10.21055/0370-1069-2024-2-70-75</article-id><article-id custom-type="elpub" pub-id-type="custom">microbe-2000</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>Видовое разнообразие возбудителей иксодовых клещевых боррелиозов в клещах Ixodes persulcatus на территории Хабаровского края</article-title><trans-title-group xml:lang="en"><trans-title>Species Diversity of Ixodidae Tick-Borne Borrelioses Agents in Ixodes persulcatus Ticks in the Territory of the Khabarovsk Region</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>Белкина</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Belkina</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Белкина Надежда Владимировна,</p><p>680000, Хабаровск, ул. Шевченко, 2</p></bio><bio xml:lang="en"><p>Nadezhda V. Belkina, </p><p>2, Shevchenko St., Khabarovsk, 680000</p></bio><email xlink:type="simple">hniiem-poi.labke@bk.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>Драгомерецкая</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Dragomeretskaya</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>680000, Хабаровск, ул. Шевченко, 2</p></bio><bio xml:lang="en"><p>2, Shevchenko St., Khabarovsk, 680000</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/0000-0003-3050-4472</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Троценко</surname><given-names>О. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Trotsenko</surname><given-names>O. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>680000, Хабаровск, ул. Шевченко, 2</p></bio><bio xml:lang="en"><p>2, Shevchenko St., Khabarovsk, 680000</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>Аушева</surname><given-names>Т. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ausheva</surname><given-names>T. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>680000, Хабаровск, ул. Шевченко, 2</p></bio><bio xml:lang="en"><p>2, Shevchenko St., Khabarovsk, 680000</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФБУН «Хабаровский научно-исследовательский институт эпидемиологии и микробиологии»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Khabarovsk Research Institute of Epidemiology and Microbiology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>26</day><month>06</month><year>2024</year></pub-date><volume>0</volume><issue>2</issue><fpage>70</fpage><lpage>75</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Белкина Н.В., Драгомерецкая А.Г., Троценко О.Е., Аушева Т.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Белкина Н.В., Драгомерецкая А.Г., Троценко О.Е., Аушева Т.А.</copyright-holder><copyright-holder xml:lang="en">Belkina N.V., Dragomeretskaya A.G., Trotsenko O.E., Ausheva T.A.</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/2000">https://journal.microbe.ru/jour/article/view/2000</self-uri><abstract><p>Цель работы – определить видовое разнообразие возбудителей иксодовых клещевых боррелиозов в клещах Ixodes persulcatus на территории Хабаровского края.</p><sec><title>Материалы и методы</title><p>Материалы и методы. В течение эпидемического сезона (апрель – октябрь) 2017–2023 гг. исследовано 4751 удаленная после присасывания к человеку и 418 собранных с растительности на территории Хабаровского края особей I. persulcatus Schulze, 1930. Сбор иксодовых клещей проводили в бесснежный сезон 2021–2023 гг. в зеленых массивах г. Хабаровска, а также на территории Хабаровского района на флаг. В клещах методом полимеразной цепной реакции в режиме реального времени выявляли ДНК боррелий комплекса Borrelia burgdorferi sensu lato (s.l.) и B. miyamotoi. Дифференцировку видов боррелий в образцах, содержащих генетический материал B. burgdorferi s.l., осуществляли в два этапа. На первом этапе определяли наличие в пробе ДНК боррелий группы B. garinii s.l. (B. garinii + B. bavariensis) и ДНК B. afzelii. На втором этапе позитивные образцы B. garinii s.l. были дифференцированы на B. garinii sensu stricto (s.s.) и B. bavariensis.</p></sec><sec><title>Результаты и обсуждение</title><p>Результаты и обсуждение. В напитавшихся клещах генетический материал B. burgdorferi s.l. выявлен в 45,7 % случаев, ДНК B. miyamotoi обнаружена в 7,2 % проб. В клещах, собранных с растительности, ДНК B. burgdorferi s.l. выявлена в 38,0 % случаев. При дальнейшем изучении генетический материал B. afzelii и боррелий группы B. garinii s.l. определен в 47,2 % случаях для обоих возбудителей. Внутри группы B. garinii s.l. ДНК B. bavariensis выявлена в 18,6 %, B. garinii s.s. – в 8 % проб, при этом микст-инфицирование отмечено в 53,3 % случаев. Показатель инфицированности B. afzelii клещей I. persulcatus оказался существенно выше такового для B. garinii s.s. и B. bavariensis, при этом статистически значимых различий показателей инфицированности клещей B. garinii s.s. и B. bavariensis не обнаружено.</p></sec></abstract><trans-abstract xml:lang="en"><p>The aim of the work was to determine the species diversity of the causative agents of Ixodidae tick-borne borrelioses in Ixodes persulcatus ticks in the Khabarovsk Territory.</p><sec><title>Materials and methods</title><p>Materials and methods. During the epidemic season (April–October) 2017–2023, 4751 specimens of I. persulcatus Schulze, 1930, removed after attachment to humans and 418 ones collected from vegetation in the Khabarovsk Region, were studied. Ixodidae ticks were collected in the green areas of Khabarovsk city during the snowless season of 2021–2023, as well as in the territory of the Khabarovsk Region on the flag. DNA of the borrelia complex Borrelia burgdorferi sensu lato (s.l.) and B. miyamotoi was detected in ticks using real-time polymerase chain reaction (PCR). Differentiation of borrelia species in samples containing genetic material of B. burgdorferi s.l. was carried out in two stages. At the first stage, the presence of DNA from borrelia of the B. garinii s.l. group (B. garinii + B. bavariensis) and B. afzelii DNA was determined in the sample. At the second stage, positive samples of B. garinii s.l. were differentiated into B. garinii sensu stricto (s.s.) and B. bavariensis. </p></sec><sec><title>Results and discussion</title><p>Results and discussion. In engorged ticks, genetic material of B. burgdorferi s.l. was detected in 45.7 % of the cases, DNA of B. miyamotoi was identified in 7.2 % of samples. In ticks collected from vegetation, the DNA of B. burgdorferi s.l. was detected in 38.0 % of cases. Upon further study, the genetic material of B. afzelii and borrelia of the B. garinii s.l. group was identified in 47.2 % of cases for both pathogens. Within the group B. garinii s.l., DNA of B. bavariensis was detected in 18.6 %, B. garinii s.s. – in 8 % of samples, at the same time, mixed infection was noted in 53.3 % of cases. The infection rate with B. afzelii in I. persulcatus ticks turned out to be statistically significantly higher than that for B. garinii s.s. and B. bavariensis, thereat statistically significant differences in tick infection rates with B. garinii s.s. and B. bavariensis was not detected.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>иксодовые клещевые боррелиозы</kwd><kwd>Ixodes persulcatus</kwd><kwd>боррелии комплекса Borrelia burgdorferi sensu lato</kwd><kwd>боррелии группы Borrelia garinii sensu lato</kwd><kwd>полимеразная цепная реакция</kwd><kwd>B. afzelii</kwd><kwd>B. garinii sensu stricto</kwd><kwd>B. bavarensis</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Ixodidae tick-borne borrelioses</kwd><kwd>Ixodes persulcatus</kwd><kwd>borrelia of the Borrelia burgdorferi sensu lato complex</kwd><kwd>borrelia group Borrelia garinii sensu lato</kwd><kwd>polymerase chain reaction</kwd><kwd>B. afzelii</kwd><kwd>B. garinii sensu stricto</kwd><kwd>B. bavarensis</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">Steinbrink A., Brugger K., Margos G., Kraiczy P., Klimpel S. 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