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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Journal of microbiology, epidemiology and immunobiology</journal-id><journal-title-group><journal-title xml:lang="en">Journal of microbiology, epidemiology and immunobiology</journal-title><trans-title-group xml:lang="ru"><trans-title>Журнал микробиологии, эпидемиологии и иммунобиологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0372-9311</issn><issn publication-format="electronic">2686-7613</issn><publisher><publisher-name xml:lang="en">Central Research Institute for Epidemiology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">1203</article-id><article-id pub-id-type="doi">10.36233/0372-9311-268</article-id><article-id pub-id-type="edn">eibqqi</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL RESEARCHES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Antibiotic sensitivity of cholera vibrions in biofilms formed on various substrates</article-title><trans-title-group xml:lang="ru"><trans-title>Антибиотикочувствительность холерных вибрионов в сложных биоплёнках, сформированных на различных субстратах</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0008-4705</contrib-id><name-alternatives><name xml:lang="en"><surname>Selyanskaya</surname><given-names>Nadezhda A.</given-names></name><name xml:lang="ru"><surname>Селянская</surname><given-names>Надежда Александровна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Med.), senior researcher, Department of microbiology of cholera and other acute intestinal infections</p></bio><bio xml:lang="ru"><p>к.м.н., с.н.с. отдела микробиологии холеры и других острых кишечных инфекций</p></bio><email>ppdn@inbox.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7831-841X</contrib-id><name-alternatives><name xml:lang="en"><surname>Titova</surname><given-names>Svetlana V.</given-names></name><name xml:lang="ru"><surname>Титова</surname><given-names>Светлана Викторовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Med.), leading researcher, Department of natural focal infections</p></bio><bio xml:lang="ru"><p>к.м.н., в.н.с. отдела природно-очаговых инфекций</p></bio><email>svetatitova@bk.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6003-4283</contrib-id><name-alternatives><name xml:lang="en"><surname>Menshikova</surname><given-names>Elena A.</given-names></name><name xml:lang="ru"><surname>Меньшикова</surname><given-names>Елена Аркадьевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Biol.), senior researcher, Department of microbiology of cholera and other acute intestinal infections</p></bio><bio xml:lang="ru"><p>к.б.н., с.н.с. отдела микробиологии холеры и других острых кишечных инфекций</p></bio><email>super.monika2007@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Rostov-on-Don Anti-Plague Institute</institution></aff><aff><institution xml:lang="ru">Ростовский-на-Дону противочумный институт Роспотребнадзора</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-05-22" publication-format="electronic"><day>22</day><month>05</month><year>2023</year></pub-date><volume>100</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>188</fpage><lpage>195</lpage><history><date date-type="received" iso-8601-date="2022-04-15"><day>15</day><month>04</month><year>2022</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Selyanskaya N.A., Titova S.V., Menshikova E.A.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Селянская Н.А., Титова С.В., Меньшикова Е.А.</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Selyanskaya N.A., Titova S.V., Menshikova E.A.</copyright-holder><copyright-holder xml:lang="ru">Селянская Н.А., Титова С.В., Меньшикова Е.А.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://microbiol.crie.ru/jour/article/view/1203">https://microbiol.crie.ru/jour/article/view/1203</self-uri><abstract xml:lang="en"><p><bold>Introduction. </bold>Evaluation of antibiotic sensitivity of biofilms formed by <italic>Vibrio cholerae</italic> can help in the search for effective drugs to combat cholera.</p> <p>The <bold>aim </bold>of the work is to evaluate the effectiveness of antibacterial drugs against <italic>V. cholerae</italic> cells being a part of a polymicrobial biofilm formed on various substrates.</p> <p><bold>Materials and methods. </bold>Mono- and polymicrobial biofilms were simulated <italic>in vitro</italic> on chitin and plastic in flasks containing tap autoclaved water contaminated with a suspension of 10<sup>4</sup> microbial cells of three strains of <italic>V. cholerae</italic> O1 El Tor separately or in combination with <italic>Escherichia coli </italic>QD 5003.</p> <p><bold>Results. </bold>When being a part of mono- or polymicrobial bacterial communities formed by the studied strains on chitin or plastic, the <italic>V. cholerae</italic> and <italic>E. coli</italic> cells were less susceptible to the action of antibacterial drugs.</p> <p><bold>Conclusion. </bold>The increased antibiotic resistance of <italic>V. cholerae</italic> biofilms formed on biotic and abiotic surfaces highlights the danger of their spread and preservation in the environment, creates additional problems regarding the use of antibiotics and requires the development of alternative strategies to reduce resistance.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение. </bold>Изучение антибиотикочувствительности биоплёнок холерных вибрионов может помочь в поиске эффективных препаратов для борьбы с холерой.</p> <p><bold>Цель </bold>работы — оценить эффективность антибактериальных препаратов в отношении клеток <italic>Vibrio cholerae</italic> в составе полимикробной биоплёнки, образованной на различных субстратах.</p> <p><bold>Материалы и методы.</bold> Проводили моделирование моно- и полимикробных биоплёнок <italic>in vitro</italic> на хитине и пластике во флаконах с водопроводной автоклавированной водой, контаминированных взвесью 10<sup>4</sup> микробных клеток трёх штаммов <italic>V. cholerae</italic> О1 El Tor отдельно и в сочетании с <italic>Escherichia coli </italic>QD 5003.</p> <p><bold>Результаты. </bold>В составе моно- и полимикробных бактериальных сообществ, образованных изучаемыми штаммами на хитине или на пластике, клетки холерных вибрионов и кишечной палочки оказались менее восприимчивы к действию антибактериальных препаратов.</p> <p><bold>Заключение. </bold>Повышенная антибиотикоустойчивость биоплёнок холерных вибрионов, образованных на биотических и абиотических поверхностях, подчёркивает опасность их распространения и сохранения в окружающей среде, создаёт дополнительные проблемы в отношении использования антибиотиков и требует разработки альтернативных стратегий снижения резистентности.</p></trans-abstract><kwd-group xml:lang="en"><kwd>antibiotic resistance</kwd><kwd>biofilm</kwd><kwd>V. cholerae</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>антибиотикорезистентность</kwd><kwd>биоплёнка</kwd><kwd>холерный вибрион</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Silva A.J., Benitez J.A. 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