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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">Therapy</journal-id><journal-title-group><journal-title xml:lang="en">Therapy</journal-title><trans-title-group xml:lang="ru"><trans-title>Терапия</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2412-4036</issn><issn publication-format="electronic">2713-1823</issn><publisher><publisher-name xml:lang="en">Bionika Media</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">696092</article-id><article-id pub-id-type="doi">10.18565/therapy.2025.8.109-114</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>CLINICAL CASES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>КЛИНИЧЕСКИЕ СЛУЧАИ</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">Using N-acetylcysteine for cough associated with seasonal respiratory viral infection complicated by acute bronchitis</article-title><trans-title-group xml:lang="ru"><trans-title>Применение N-ацетилцистеина при кашле на фоне сезонной респираторной вирусной инфекции, осложнившейся развитием острого бронхита</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1002-1895</contrib-id><name-alternatives><name xml:lang="en"><surname>Berns</surname><given-names>Svetlana A.</given-names></name><name xml:lang="ru"><surname>Бернс</surname><given-names>Светлана Александровна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Dr. Sci. (Medicine), professor, head of the Department of studying the pathogenetic aspects of aging, head of the Department of therapy and general medical practice</p></bio><bio xml:lang="ru"><p>д. м. н., профессор, руководитель отдела изучения патогенетических аспектов старения, заведующий кафедры терапии и общей врачебной практики</p></bio><email>svberns@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">National Medical Research Center for Therapy and Preventive Medicine of the Ministry of Healthcare of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр терапии и профилактической медицины» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-11-11" publication-format="electronic"><day>11</day><month>11</month><year>2025</year></pub-date><volume>11</volume><issue>8</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>109</fpage><lpage>114</lpage><history><date date-type="received" iso-8601-date="2025-11-11"><day>11</day><month>11</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-11-11"><day>11</day><month>11</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Bionika Media</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, ООО «Бионика Медиа»</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Bionika Media</copyright-holder><copyright-holder xml:lang="ru">ООО «Бионика Медиа»</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/2412-4036/article/view/696092">https://journals.eco-vector.com/2412-4036/article/view/696092</self-uri><abstract xml:lang="en"><p>Article presents a clinical case of acute respiratory viral infection in an elderly patient, complicated by acute bronchitis. Diagnostic and treatment approaches are discussed from the perspective of current Russian clinical guidelines.</p></abstract><trans-abstract xml:lang="ru"><p>В статье приведен клинический случай течения острой респираторной вирусной инфекции у пожилого пациента, осложнившейся развитием острого бронхита. Рассматривается диагностическая и лечебная тактика с позиций актуальных российских клинических рекомендаций.</p></trans-abstract><kwd-group xml:lang="en"><kwd>acute respiratory viral infection</kwd><kwd>acute bronchitis</kwd><kwd>cough</kwd><kwd>mucolytic therapy</kwd><kwd>N-acetylcysteine</kwd><kwd>antibacterial therapy</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>острая респираторная вирусная инфекция</kwd><kwd>острый бронхит</kwd><kwd>кашель</kwd><kwd>муколитическая терапия</kwd><kwd>N-ацетилцистеин</kwd><kwd>антибактериальная терапия</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Клинические рекомендации. Острые респираторные вирусные инфекции (ОРВИ) у взрослых. Общероссийская общественная организация «Российское научное медицинское общество терапевтов», Национальная ассоциация специалистов по инфекционным болезням имени академика В.И. Покровского (НАСИБ). 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