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<article article-type="review-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">10.21055/0370-1069-2026-1-17-25</article-id><article-id custom-type="elpub" pub-id-type="custom">microbe-2279</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>ОБЗОРЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>REVIEWS</subject></subj-group></article-categories><title-group><article-title>Обзор эпизоотической и эпидемической ситуации по высокопатогенному гриппу птиц в России и мире в 2025 г.</article-title><trans-title-group xml:lang="en"><trans-title>Review of the Epizootic and Epidemic Situation regarding Highly Pathogenic Avian Influenza in Russia and Globally in 2025</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-4546-4795</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Еникеева</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Enikeeva</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>630559, Новосибирская обл., р.п. Кольцово</p></bio><bio xml:lang="en"><p>Kol’tsovo, Novosibirsk Region, 630559</p></bio><email xlink:type="simple">vector@vector.nsc.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0556-0552</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Панова</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Panova</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Панова Анастасия Сергеевна</p><p>630559, Новосибирская обл., р.п. Кольцово</p></bio><bio xml:lang="en"><p>Anastasia S. Panova</p><p>Kol’tsovo, Novosibirsk Region, 630559</p></bio><email xlink:type="simple">panova_as@vector.nsc.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-1548-5608</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Васильцова</surname><given-names>Н. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Vasiltsova</surname><given-names>N. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>630559, Новосибирская обл., р.п. Кольцово</p></bio><bio xml:lang="en"><p>Kol’tsovo, Novosibirsk Region, 630559</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/0000-0003-3214-2794</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Даниленко</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Danilenko</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>630559, Новосибирская обл., р.п. Кольцово</p></bio><bio xml:lang="en"><p>Kol’tsovo, Novosibirsk Region, 630559</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/0009-0002-4351-8267</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шадринова</surname><given-names>К. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Shadrinova</surname><given-names>K. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>630559, Новосибирская обл., р.п. Кольцово</p></bio><bio xml:lang="en"><p>Kol’tsovo, Novosibirsk Region, 630559</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/0000-0003-4573-5783</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Святченко</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Svyatchenko</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>630559, Новосибирская обл., р.п. Кольцово</p></bio><bio xml:lang="en"><p>Kol’tsovo, Novosibirsk Region, 630559</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/0009-0002-3191-1360</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Иванова</surname><given-names>К. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanova</surname><given-names>K. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>630559, Новосибирская обл., р.п. Кольцово</p></bio><bio xml:lang="en"><p>Kol’tsovo, Novosibirsk Region, 630559</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/0000-0002-1547-1708</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Онхонова</surname><given-names>Г. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Onkhonova</surname><given-names>G. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>630559, Новосибирская обл., р.п. Кольцово</p></bio><bio xml:lang="en"><p>Kol’tsovo, Novosibirsk Region, 630559</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/0009-0001-6753-597X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гончарова</surname><given-names>Н. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Goncharova</surname><given-names>N. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>630559, Новосибирская обл., р.п. Кольцово</p></bio><bio xml:lang="en"><p>Kol’tsovo, Novosibirsk Region, 630559</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/0000-0001-9608-2044</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Трегубчак</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tregubchak</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>630559, Новосибирская обл., р.п. Кольцово</p></bio><bio xml:lang="en"><p>Kol’tsovo, Novosibirsk Region, 630559</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/0000-0002-4954-9905</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бауэр</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bauer</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>630559, Новосибирская обл., р.п. Кольцово</p></bio><bio xml:lang="en"><p>Kol’tsovo, Novosibirsk Region, 630559</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/0000-0002-4193-0779</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сивай</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sivay</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>630559, Новосибирская обл., р.п. Кольцово</p></bio><bio xml:lang="en"><p>Kol’tsovo, Novosibirsk Region, 630559</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/0000-0002-4273-1704</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Максименко</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Maksimenko</surname><given-names>L. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>630559, Новосибирская обл., р.п. Кольцово</p></bio><bio xml:lang="en"><p>Kol’tsovo, Novosibirsk Region, 630559</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/0000-0002-1339-6732</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Марченко</surname><given-names>В. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Marchenko</surname><given-names>V. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>630559, Новосибирская обл., р.п. Кольцово</p></bio><bio xml:lang="en"><p>Kol’tsovo, Novosibirsk Region, 630559</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Государственный научный центр вирусологии и биотехнологии «Вектор»<country>Россия</country></aff><aff xml:lang="en">Review of the Epizootic and Epidemic Situation regarding Highly Pathogenic Avian Influenza in Russia and Globally in 2025<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>30</day><month>03</month><year>2026</year></pub-date><volume>0</volume><issue>1</issue><fpage>17</fpage><lpage>25</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Еникеева А.И., Панова А.С., Васильцова Н.Н., Даниленко А.В., Шадринова К.Н., Святченко С.В., Иванова К.И., Онхонова Г.С., Гончарова Н.И., Трегубчак Т.В., Бауэр Т.В., Сивай М.В., Максименко Л.В., Марченко В.Ю., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Еникеева А.И., Панова А.С., Васильцова Н.Н., Даниленко А.В., Шадринова К.Н., Святченко С.В., Иванова К.И., Онхонова Г.С., Гончарова Н.И., Трегубчак Т.В., Бауэр Т.В., Сивай М.В., Максименко Л.В., Марченко В.Ю.</copyright-holder><copyright-holder xml:lang="en">Enikeeva A.I., Panova A.S., Vasiltsova N.N., Danilenko A.V., Shadrinova K.N., Svyatchenko S.V., Ivanova K.I., Onkhonova G.S., Goncharova N.I., Tregubchak T.V., Bauer T.V., Sivay M.V., Maksimenko L.V., Marchenko V.Y.</copyright-holder><license 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/2279">https://journal.microbe.ru/jour/article/view/2279</self-uri><abstract><p>В 2025 г. сохранялась высокая эпизоотическая активность высокопатогенного вируса гриппа птиц (ВПВГП), о чем свидетельствуют более 7 тыс. вспышек среди домашней и дикой птицы в 75 странах мира, сопровождавшиеся гибелью или вынужденным уничтожением сельскохозяйственных птиц, число которых превысило 98 млн. Большинство зарегистрированных в мире вспышек связано с ВПВГП A(H5N1) клады 2.3.4.4b, преобладающим в циркуляции во всем мире с 2021 г. Помимо доминирующего подтипа A(H5N1) клады 2.3.4.4b, наблюдалась циркуляция других высокопатогенных подтипов, включая A(H5N5), A(H5N2), A(H5N8) и A(H5N9), а также A(H7), что указывает на продолжающуюся эволюцию вируса гриппа птиц в природных и антропогенных экосистемах. В США и ряде других стран ВПВГП A(H5N1) стал причиной многочисленных случаев заболевания диких и домашних млекопитающих, а также людей. В 2025 г. впервые в мире зарегистрирован случай заболевания человека гриппом A(H5N5) в США. Всего в 2025 г. зарегистрировано 74 случая зоонозной передачи ВПВГП человеку, в том числе 32 случая, вызванных вирусом A(H5) различных клад (2.3.4.4b, 2.3.2.1e, 2.3.2.1a), что указывает на продолжающийся рост межвидовой передачи, который несет потенциальную угрозу для общественного здоровья. В Российской Федерации в 2025 г. сохранялась напряженная эпизоотическая обстановка – зарегистрированы вспышки, вызванные ВПВГП A(H5N1) клады 2.3.4.4b, среди диких и домашних птиц. При этом на Дальнем Востоке отмечена циркуляция вируса A(H5N1), содержащего мутации повышенной вирулентности для млекопитающих. Также в части выделенных изолятов A(H5N1) обнаружены аминокислотные замены в антигенных сайтах. Несмотря на продолжающуюся эволюцию, на данный момент не наблюдается значительного изменения антигенных свойств ВПВГП A(H5N1), циркулирующих в Российской Федерации.</p></abstract><trans-abstract xml:lang="en"><p>In 2025, high epizootic activity of highly pathogenic avian influenza virus (HPAIV) persisted globally, as evidenced by more than 7,000 outbreaks reported in poultry and wild birds across 75 countries, resulting in mortality or culling of birds exceeding 98 million specimens. The majority of outbreaks worldwide were associated with HPAIV A(H5N1) clade 2.3.4.4b, which has remained the predominant lineage in global circulation since 2021. In addition to the dominant A(H5N1) clade 2.3.4.4b subtype, circulation of other highly pathogenic subtypes was observed, including A(H5N5), A(H5N2), A(H5N8), and A(H5N9), as well as A(H7), indicating ongoing evolution of avian influenza viruses in natural and anthropogenic ecosystems. In the United States and several other countries, HPAIV A(H5N1) caused numerous infections in wild and domestic mammals as well as in humans. In 2025, the world’s first human case of A(H5N5) influenza was documented in the United States. A total of 74 zoonotic HPAIV human infections were reported globally in 2025, including 32 cases caused by A(H5) viruses of various clades (2.3.4.4b, 2.3.2.1e, 2.3.2.1a), reflecting a continuing increase in interspecies transmission that poses a potential public health threat. In the Russian Federation, high epizootic activity of HPAIV persisted throughout 2025, with outbreaks caused by A(H5N1) clade 2.3.4.4b viruses reported in both wild and domestic birds. Notably, in the Russian Far East, circulation of an A(H5N1) virus carrying mammalian-adaptive mutations associated with increased virulence in mammals was detected. Additionally, amino acid substitutions in antigenic sites were identified in several A(H5N1) isolates. Despite ongoing virus evolution, no substantial alterations in the antigenic properties of HPAIV A(H5N1) strains circulating in the Russian Federation have been observed to date.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>вирус гриппа птиц</kwd><kwd>мониторинг</kwd><kwd>эпизоотия</kwd><kwd>вспышки</kwd><kwd>H5N1</kwd><kwd>Россия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>avian influenza virus</kwd><kwd>surveillance</kwd><kwd>epizooty</kwd><kwd>outbreaks</kwd><kwd>H5N1</kwd><kwd>Russia</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Исследование проводилось в рамках выполнения государственного задания ГЗ-1/26-1.1.1.1 ФБУН Государственный научный центр вирусологии и биотехнологии «Вектор» Роспотребнадзора</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>The study was conducted within the framework of the state assignment SA-1/26-1.1.1.1 for the Federal Budgetary Institution of Science “State Research Center of Virology and Biotechnology “Vector” of the Rospotrebnadzor</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">WHO. 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