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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">18477</article-id><article-id pub-id-type="doi">10.36233/0372-9311-354</article-id><article-id pub-id-type="edn">uwguml</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">Isolation and genetic analysis of the chikungunya virus from Aedes aegypti and Aedes albopictus mosquitoes captured in Central America</article-title><trans-title-group xml:lang="ru"><trans-title>Изоляция и генетический анализ вируса Чикунгунья из комаров Aedes aegypti и Aedes albopictus, отловленных в Центральной Америке</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9731-3681</contrib-id><name-alternatives><name xml:lang="en"><surname>Ignatyev</surname><given-names>Georgy M.</given-names></name><name xml:lang="ru"><surname>Игнатьев</surname><given-names>Георгий Михайлович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>D. Sci. (Med.), Professor, main expert, Laboratory of molecular biotechnology, I.I. Mechnikov Research Institute for Vaccines and Sera</p></bio><bio xml:lang="ru"><p>д.м.н., профессор, главный сотрудник лаб. молекулярной биотехнологии НИИ вакцин и сывороток им. И.И. Мечникова</p></bio><email>oksanich@yahoo.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8600-7347</contrib-id><name-alternatives><name xml:lang="en"><surname>Oksanich</surname><given-names>Alexey S.</given-names></name><name xml:lang="ru"><surname>Оксанич</surname><given-names>Алексей Сергеевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Biol.), leading researcher, Laboratory of molecular biotechnology, I.I. Mechnikov Research Institute for Vaccines and Sera</p></bio><bio xml:lang="ru"><p>к.б.н., в.н.с. лаб. молекулярной биотехнологии НИИ вакцин и сывороток им. И.И. Мечникова</p></bio><email>oksanich@yahoo.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0218-6641</contrib-id><name-alternatives><name xml:lang="en"><surname>Kazakova</surname><given-names>Elena V.</given-names></name><name xml:lang="ru"><surname>Казакова</surname><given-names>Елена Владимировна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Deputy director for HR and organizational design, St. Petersburg Research Institute for Vaccines and Sera</p></bio><bio xml:lang="ru"><p>зам. директора по управлению персоналом и организационному проектированию Санкт-Петербургского НИИ вакцин и сывороток</p></bio><email>oksanich@yahoo.com</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3264-6722</contrib-id><name-alternatives><name xml:lang="en"><surname>Samartseva</surname><given-names>Tatyana G.</given-names></name><name xml:lang="ru"><surname>Самарцева</surname><given-names>Татьяна Геннадьевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>researcher, Laboratory of molecular biotechnology, I.I. Mechnikov Research Institute for Vaccines and Sera</p></bio><bio xml:lang="ru"><p>н.с. лаб. молекулярной биотехнологии НИИ вакцин и сывороток им. И.И. Мечникова</p></bio><email>oksanich@yahoo.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2491-4072</contrib-id><name-alternatives><name xml:lang="en"><surname>Otrashevskaya</surname><given-names>Еlena V.</given-names></name><name xml:lang="ru"><surname>Отрашевская</surname><given-names>Елена Викторовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>researcher, Laboratory of molecular biotechnology, I.I. Mechnikov Research Institute for Vaccines and Sera</p></bio><bio xml:lang="ru"><p>ведущий сотрудник лаб. молекулярной биотехнологии НИИ вакцин и сывороток им. И.И. Мечникова</p></bio><email>oksanich@yahoo.com</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9246-3915</contrib-id><name-alternatives><name xml:lang="en"><surname>Uyba</surname><given-names>Stanislav V.</given-names></name><name xml:lang="ru"><surname>Уйба</surname><given-names>Станислав Валентинович</given-names></name></name-alternatives><address><country country="NI">Nicaragua</country></address><bio xml:lang="en"><p>General director, Mechnikov Latin American Institute of Biotechnology</p></bio><bio xml:lang="ru"><p>генеральный директор Латиноамериканского института биотехнологий «Мечников»</p></bio><email>oksanich@yahoo.com</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6635-363X</contrib-id><name-alternatives><name xml:lang="en"><surname>Trukhin</surname><given-names>Victor P.</given-names></name><name xml:lang="ru"><surname>Трухин</surname><given-names>Виктор Павлович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Director, St. Petersburg Research Institute for Vaccines and Sera</p></bio><bio xml:lang="ru"><p>директор Санкт-Петербургского НИИ вакцин и сывороток</p></bio><email>oksanich@yahoo.com</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">I. Mechnikov Research Institute for Vaccines and Sera</institution></aff><aff><institution xml:lang="ru">Научно-исследовательский институт вакцин и сывороток им. И.И. Мечникова</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">St. Petersburg Research Institute for Vaccines and Sera</institution></aff><aff><institution xml:lang="ru">Санкт-Петербургский научно-исследовательский институт вакцин и сывороток</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Mechnikov Latin American Institute of Biotechnology</institution></aff><aff><institution xml:lang="ru">Латиноамериканский институт биотехнологии «Мечников»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-11-22" publication-format="electronic"><day>22</day><month>11</month><year>2023</year></pub-date><volume>100</volume><issue>5</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>310</fpage><lpage>318</lpage><history><date date-type="received" iso-8601-date="2023-11-20"><day>20</day><month>11</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Ignatyev G.M., Oksanich A.S., Kazakova E.V., Samartseva T.G., Otrashevskaya Е.V., Uyba S.V., Trukhin V.P.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Игнатьев Г.М., Оксанич А.С., Казакова Е.В., Самарцева Т.Г., Отрашевская Е.В., Уйба С.В., Трухин В.П.</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Ignatyev G.M., Oksanich A.S., Kazakova E.V., Samartseva T.G., Otrashevskaya Е.V., Uyba S.V., Trukhin V.P.</copyright-holder><copyright-holder xml:lang="ru">Игнатьев Г.М., Оксанич А.С., Казакова Е.В., Самарцева Т.Г., Отрашевская Е.В., Уйба С.В., Трухин В.П.</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/18477">https://microbiol.crie.ru/jour/article/view/18477</self-uri><abstract xml:lang="en"><p><bold>Introduction.</bold> The habitat of mosquitoes belonging to the genera <italic>Aedes </italic>spp.,<italic> Culex </italic>spp.<italic>, Culiseta </italic>spp. is in South and Central America, including Nicaragua. Monitoring of the spread of mosquito vectors and assessment of the infection with arboviruses can provide information on possible occurrence of new diseases or an increase in the reported cases, changes in the infectivity of viruses for humans due to changes in pathogen transmitters.</p> <p><bold>The purpose</bold> of this study was isolation and identification of arboviruses belonging to the <italic>Flavivirus</italic> and <italic>Alphavirus</italic> genera from <italic>A. albopictus, A. aegypti, Culiseta</italic> spp.,<italic> Culex </italic>spp. mosquitoes captured in forests of Nicaragua.</p> <p><bold>Materials and methods. </bold><italic>A. albopictus, A. aegypti, Culiseta</italic> spp.,<italic> Culex</italic> spp. mosquitoes were captured during the dry season in 2021 in forested areas of Nicaragua in four different locations. Mosquitoes were sorted into pools, each containing 5-8 mosquitoes (236 pools in total). Using the reverse transcription polymerase chain reaction, the pools were tested for the presence of chikungunya (CHIKV), dengue, Zika, and yellow fever viruses. Positive pools were inoculated into the C6/36 cell culture to obtain isolates and for their further sequencing.</p> <p><bold>Results. </bold>The dengue virus was detected only in <italic>Aedes </italic>spp. mosquitoes: in 7 pools — <italic>A. aegypti</italic>, in 1 — <italic>A. albopictus. </italic>CHIKV was also detected only in <italic>Aedes </italic>spp. mosquitoes:<italic> </italic>in 3 pools — <italic>A. aegypti</italic>, in 1 — <italic>A. albopictus. </italic>The sequencing of nucleotide sequences of <italic>6</italic><italic>К</italic>, <italic>Е1</italic>, <italic>Е2,</italic> and <italic>NS1</italic> genes of CHIKV isolated from <italic>A. albopictus</italic> mosquitoes showed that compared to the similar gene sequences from CHIKV isolates recovered from <italic>A. aegypti</italic> mosquitoes, the 6K gene region contained 4 nucleotide and 4 amino acid substitutions, while the E1 region contained 16 nucleotide substitutions, 10 of them led to amino acid substitutions; the E2 region contained 14 nucleotide and 11 amino acid substitutions; the NS1 region contained 33 nucleotide and 19 amino acid substitutions.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение.</bold> Ареал обитания комаров родов <italic>Aedes </italic>spp.,<italic> Culex </italic>spp.<italic>, Culiseta </italic>spp. распространяется на Южную и Центральную Америку, включая Никарагуа. Мониторинг за распространением комаров-переносчиков и оценка их инфицированности арбовирусами могут предоставить информацию о возможности появления новых или увеличении случаев уже регистрируемых заболеваний, изменении инфекционности вирусов для человека при смене переносчика возбудителя.</p> <p><bold>Целью </bold>настоящей работы были выделение и идентификация арбовирусов, принадлежащих к родам <italic>Flavivirus</italic> и <italic>Alphavirus</italic>, из комаров видов <italic>A. albopictus, A. aegypti, Culiseta</italic> spp.,<italic> Culex </italic>spp., отловленных в лесах Никарагуа.</p> <p><bold>Материалы и методы. </bold>Комары <italic>A. albopictus, A. aegypti, Culiseta</italic> spp.,<italic> Culex</italic> spp. были отловлены в 2021 г. в сухой сезон в лесной зоне в Никарагуа в четырех разных локациях. Комаров объединяли в пулы по 5–8 особей (всего 236 пулов). Методом полимеразной цепной реакции с обратной транскрипцией пулы анализировали на наличие вирусов Чикунгунья (ВЧ), денге, Зика и жёлтой лихорадки. Положительные пулы инокулировали в культуру клеток С6/36 с целью получения изолятов и их дальнейшего секвенирования.</p> <p><bold>Результаты. </bold>Вирус денге был выявлен только в комарах <italic>Aedes </italic>spp.: в 7 пулах — <italic>A. aegypti</italic>, в 1 — <italic>A. albopictus. </italic>ВЧ также был выявлен только в комарах <italic>Aedes </italic>spp.:<italic> </italic>в 3 пулах — <italic>A. aegypti</italic>, в 1 — <italic>A. albopictus. </italic>Секвенирование нуклеотидных последовательностей генов <italic>6К</italic>, <italic>Е1</italic>, <italic>Е2</italic> и <italic>NS1</italic> ВЧ, выделенного из комаров <italic>A. albopictus</italic>, показало, что по сравнению с аналогичными последовательностями генов из изолятов ВЧ, выделенных из комаров <italic>A. aegypti</italic>, в области гена белка 6К обнаружено 4 нуклеотидных и столько же аминокислотных замен, в области Е1 — 16 нуклеотидных замен, 10 из которых приводили к аминокислотным заменам, в области Е2 — 14 нуклеотидных и 11 аминокислотных замен, в области NS1 — 33 нуклеотидные и 19 аминокислотных замен.</p></trans-abstract><kwd-group xml:lang="en"><kwd>chikungunya</kwd><kwd>dengue</kwd><kwd>arboviruses</kwd><kwd>Aedes albopictus</kwd><kwd>Aedes aegypti</kwd><kwd>Culiseta spp.</kwd><kwd>Culex spp.</kwd><kwd>polymerase chain reaction</kwd><kwd>sequencing</kwd><kwd>isolate</kwd><kwd>nucleotide substitution</kwd><kwd>amino acid substitution</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Чикунгунья</kwd><kwd>денге</kwd><kwd>арбовирусы</kwd><kwd>Aedes albopictus</kwd><kwd>Aedes aegypti</kwd><kwd>Culiseta spp.</kwd><kwd>Culex spp.</kwd><kwd>полимеразная цепная реакция</kwd><kwd>секвенирование</kwd><kwd>изолят</kwd><kwd>нуклеотидная замена</kwd><kwd>аминокислотная замена</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Работа выполнена при финансовой поддержке гранта РНФ</institution></institution-wrap><institution-wrap><institution xml:lang="en">The study was funded by RSF</institution></institution-wrap></funding-source><award-id>22-14-00184</award-id></award-group><funding-statement xml:lang="en">The study was funded by RSF grant 22-14-00184.</funding-statement><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке гранта РНФ 22-14-00184.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Kraemer M.U.D., Sinka M.E., Duda K.A., et al. 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