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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">Problems of Virology</journal-id><journal-title-group><journal-title xml:lang="en">Problems of Virology</journal-title><trans-title-group xml:lang="ru"><trans-title>Вопросы вирусологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0507-4088</issn><issn publication-format="electronic">2411-2097</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">16642</article-id><article-id pub-id-type="doi">10.36233/0507-4088-237</article-id><article-id pub-id-type="edn">plhjbw</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">Molecular detection and genotyping of human herpes virus 8 in blood donors in Congo</article-title><trans-title-group xml:lang="ru"><trans-title>Обнаружение и генотипирование вируса герпеса человека 8-го типа молекулярными методами у доноров крови в Конго</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5505-2145</contrib-id><name><surname>Iloukou</surname><given-names>Patrina Joseph</given-names></name><address><country country="MA">Morocco</country></address><bio xml:lang="en"><p>M. Sc., Doctorant, Laboratory of Virology, Oncology, Biosciences, Environment and New Energy, Faculty of Science and Technology; Department of Health and Human Biology, Faculty of Health Sciences</p></bio><bio xml:lang="ru"><p>M. Sc., докторант, Лаборатория вирусологии, онкологии, биологических наук, окружающей среды и новой энергии, Факультет наук и технологий; Кафедра здравоохранения и биологии человека, Факультет медицинских наук</p></bio><email>Josephiloukou1@gmail.com</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7675-5133</contrib-id><name><surname>Boumba</surname><given-names>Anicet Luc Magloire</given-names></name><address><country country="CG">Congo</country></address><bio xml:lang="en"><p>M. Sc., PhD, Professor, Director of the Health Sciences Research Zone, Pointe-Noire Research Zone</p></bio><bio xml:lang="ru"><p>M. Sc., PhD, профессор, директор Зоны исследований в области здравоохранения, исследовательская зона Пуэнт-Нуар</p></bio><email>anicetboumba1974@gmail.com</email><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7065-2934</contrib-id><name><surname>Ngombe</surname><given-names>Dorine Florence Luthera</given-names></name><address><country country="MA">Morocco</country></address><bio xml:lang="en"><p>M. Sc., Doctorant, Laboratory of Virology, Oncology, Biosciences, Environment and New Energy, Faculty of Science and Technology; Department of Health and Human Biology, Faculty of Health Sciences</p></bio><bio xml:lang="ru"><p>M. Sc., докторант лаборатории вирусологии, онкологии, биологических наук, окружающей среды и новых источников энергии (LVO BEEN), Факультет наук и технологий; Кафедра здравоохранения и биологии человека, Факультет медицинских наук</p></bio><email>ngombedorine@gmail.com</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-9474-7989</contrib-id><name><surname>Massengo</surname><given-names>Norvi Rigobert Bienvenu</given-names></name><address><country country="CG">Congo</country></address><bio xml:lang="en"><p>M. Sc., Doctorant, Department of Health and Human Biology, Faculty of Health Sciences</p></bio><bio xml:lang="ru"><p>M. Sc., докторант кафедры здоровья и биологии человека факультета медицинских наук</p></bio><email>bienvenumassengo@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1840-951X</contrib-id><name><surname>Malonga</surname><given-names>Gervillien Arnold</given-names></name><address><country country="CG">Congo</country></address><bio xml:lang="en"><p>Department of Health and Human Biology, Faculty of Health Sciences; M. Sc., Doctorant, Virology Laboratory</p></bio><bio xml:lang="ru"><p>кафедра здравоохранения и биологии человека, факультет наук о здоровье; M. Sc., докторант, Вирусологическая лаборатория</p></bio><email>arnoldgermalonga@gmail.com</email><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6764-7122</contrib-id><name><surname>Moukassa</surname><given-names>Donatien</given-names></name><address><country country="CG">Congo</country></address><bio xml:lang="en"><p>M. Sc., PhD, Professor, Head of Health and Human Biology Department, Faculty of Health Sciences</p></bio><bio xml:lang="ru"><p>M. Sc., PhD, профессор, заведующий кафедрой здоровья и биологии человека, факультет медицинских наук</p></bio><email>donatienmoukassa@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5809-0270</contrib-id><name><surname>Ennaji</surname><given-names>Moulay Mustapha</given-names></name><address><country country="MA">Morocco</country></address><bio xml:lang="en"><p>M. Sc., PhD, Professor, Virology, Oncology And Biotechnology Research Group Leader ‒ Head of Laboratory of Virology, Oncology, Biosciences, Environment and New Energy, Faculty of Science and Technology</p></bio><bio xml:lang="ru"><p>M. Sc., PhD, профессор, руководитель исследовательской группы вирусологии, онкологии и биотехнологии ‒ заведующий лабораторией вирусологии, онкологии, биологических наук, окружающей среды и новой энергии, факультет естественных и технических наук</p></bio><email>m.ennaji@yahoo.fr</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Hassan II University of Casablanca</institution></aff><aff><institution xml:lang="ru">Университет Хасана II в Касабланке</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Marien N’gouabi University</institution></aff><aff><institution xml:lang="ru">Университет Мариен Нгуаби</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">National Institute for Research in Health Sciences (IRSSA)</institution></aff><aff><institution xml:lang="ru">Национальный институт исследований в области наук о здоровье (IRSSA)</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">Sorbonne University, INSERM, Pierre Louis Institute of Epidemiology and Public Health, Public Assistance ‒ Paris Hospitals (AP-HP), Pitié-Salpêtrière University Hospitals ‒ Charles Foix</institution></aff><aff><institution xml:lang="ru">Университет Сорбонна, INSERM, Институт эпидемиологии и общественного здравоохранения Пьера Луи, Государственная помощь ‒ Парижские больницы (AP-HP), Университетские больницы Питье-Сальпетриер ‒ Charles Foix</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-07-05" publication-format="electronic"><day>05</day><month>07</month><year>2024</year></pub-date><volume>69</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>277</fpage><lpage>284</lpage><history><date date-type="received" iso-8601-date="2024-05-15"><day>15</day><month>05</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Iloukou P.J., Boumba A.L., Ngombe D.F., Massengo N.R., Malonga G.A., Moukassa D., Ennaji M.M.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Iloukou P.J., Boumba A.L., Ngombe D.F., Massengo N.R., Malonga G.A., Moukassa D., Ennaji M.M.</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Iloukou P.J., Boumba A.L., Ngombe D.F., Massengo N.R., Malonga G.A., Moukassa D., Ennaji M.M.</copyright-holder><copyright-holder xml:lang="ru">Iloukou P.J., Boumba A.L., Ngombe D.F., Massengo N.R., Malonga G.A., Moukassa D., Ennaji M.M.</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://virusjour.crie.ru/jour/article/view/16642">https://virusjour.crie.ru/jour/article/view/16642</self-uri><abstract xml:lang="en"><p><bold>Objectives. </bold>Human herpesvirus 8 (HHV8) is rarely studied in Congo, despite its prevalence in Africa. Among healthy individuals, HHV-8 does not always lead to a life-threatening infection; however, in immunocompromised individuals, it could lead to more severe disease. The distribution of HHV-8 genotypes varies depending on ethnicity and geographic region.</p> <p><bold>Method. </bold>A prospective cross-sectional study included 265 samples from healthy blood donors from the National Blood Transfusion Center in Brazzaville, with an average age of 35 years, with extremes ranging from 18 to 60 years. After DNA extraction, a nested PCR was carried out for molecular detection, followed by genotyping by amplification of specific primers.</p> <p><bold>Result. </bold>In this study, 4.9% were positive for molecular detection of HHV-8 DNA. All HHV-8 positive DNA samples that were subjected to genotyping by amplification with specific primers allowing discrimination of two major genotypes (A and B). Genotype A was identified in 5 (1.9%) samples and genotype B in 2 (0.7%) samples, indicating that both genotypes were predominant. The remaining viral DNA samples not identified as the major genotypes were classified as «indeterminate» and consisted of 6 (2.3%) samples.</p> <p><bold>Conclusion: </bold>The results of the study suggest that Congo is an area where HHV-8 infection is endemic.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение.</bold> Вирус герпеса человека 8-го типа (HHV-8) мало изучен в Конго, несмотря на его распространенность в Африке. Среди здоровых людей HHV-8 не всегда приводит к опасной для жизни инфекции; однако у лиц с ослабленным иммунитетом он может приводить к более тяжелому течению заболевания. Распределение генотипов HHV-8 варьирует в зависимости от этнической принадлежности и географического региона.</p> <p><bold>Методы.</bold> Проспективное поперечное исследование включало 265 образцов от здоровых доноров крови из Национального центра переливания крови в Браззавиле, средний возраст которых составлял 35 лет, с предельными значениями от 18 до 60 лет. После выделения ДНК из образцов была проведена гнездовая ПЦР для выявления HHV-8 с последующим генотипированием методом амплификации с генотип-специфичными праймерами.</p> <p><bold>Результаты.</bold> ДНК HHV-8 была выявлена в 4,9% образцов. Все образцы ДНК HHV-8, которые были подвергнуты генотипированию путем амплификации с генотип-специфичными праймерами, принадлежали к двум основным генотипам: A и B. Генотип A был выявлен в 5 (1,9%) образцах, а генотип B ‒ в 2 (0,7%) образцах, что подтвердило встречаемость обоих генотипов. Остальные образцы вирусной ДНК, не идентифицированные как принадлежащие основным генотипам, были классифицированы как «неопределенные» и включали 6 (2,3%) образцов.</p> <p><bold>Заключение.</bold> Полученные результаты свидетельствуют о том, что Конго является областью, где инфекция HHV-8 является эндемичной.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Congo</kwd><kwd>HHV-8</kwd><kwd>KSHV</kwd><kwd>genotypes</kwd><kwd>blood donors</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Конго</kwd><kwd>HHV-8</kwd><kwd>KSHV</kwd><kwd>генотипы</kwd><kwd>доноры крови</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Dittmer D.P., Damania B. Kaposi sarcoma-associated herpesvirus: immunobiology, oncogenesis, and therapy. J. Clin. Invest. 2016; 126(9): 3165–75. 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