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<article article-type="research-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">10.21055/0370-1069-2011-3(109)-40-42</article-id><article-id custom-type="elpub" pub-id-type="custom">microbe-677</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>МИКРОБИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MICROBIOLOGY</subject></subj-group></article-categories><title-group><article-title>Инфекционные свойства штаммов вируса гриппа птиц А/H5N1 в экспериментах на мышах</article-title><trans-title-group xml:lang="en"><trans-title>Infectious Properties of Avian Influenza A/H5N1 Virus Strains Studied by means of Experiments on Mice</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сергеев</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sergeev</surname><given-names>A. A.</given-names></name></name-alternatives><email xlink:type="simple">aasergeev@vector.nsc.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пьянков</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>P`yankov</surname><given-names>O. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Демина</surname><given-names>О. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Demina</surname><given-names>O. K.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пьянкова</surname><given-names>О. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>P`yankova</surname><given-names>O. G.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рябчикова</surname><given-names>Е. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Ryabchikova</surname><given-names>E. I.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Агафонов</surname><given-names>А. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Agafonov</surname><given-names>A. P.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сергеев</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Sergeev</surname><given-names>A. N.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Государственный научный центр вирусологии и биотехнологии «Вектор»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>State Research Centre of Virology and Biotechnology Vector</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2011</year></pub-date><pub-date pub-type="epub"><day>20</day><month>06</month><year>2011</year></pub-date><volume>0</volume><issue>3(109)</issue><fpage>40</fpage><lpage>42</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сергеев А.А., Пьянков О.В., Демина О.К., Пьянкова О.Г., Рябчикова Е.И., Агафонов А.П., Сергеев А.Н., 2011</copyright-statement><copyright-year>2011</copyright-year><copyright-holder xml:lang="ru">Сергеев А.А., Пьянков О.В., Демина О.К., Пьянкова О.Г., Рябчикова Е.И., Агафонов А.П., Сергеев А.Н.</copyright-holder><copyright-holder xml:lang="en">Sergeev A.A., P`yankov O.V., Demina O.K., P`yankova O.G., Ryabchikova E.I., Agafonov A.P., Sergeev A.N.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" 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/677">https://journal.microbe.ru/jour/article/view/677</self-uri><abstract><p>Исследованные штаммы вируса гриппа птиц А/H5N1 (ВГП), выделенные на территории России и стран СНГ, по вирулентности для мышей при интраназальном и аэрозольном заражении могут быть разделены на 3 группы: высоковирулентные [50 % аэрогенная летальная доза (АЛД50) - 50)] - A/Chicken/Kurgan/05/2005, A/Chicken/Crimea/04/2005, A/Chicken/Omsk/06, A/Chicken/Krasnodar/02/06, A/Chicken/Dagestan/06; средней степени вирулентности [ЛД50 (АЛД50) - 3,0-4,5 lg ЭИД50] - A/Duck/Kurgan/08/2005; авирулентные [ЛД50 (АЛД50) - &gt;4,5 lg ЭИД50] - A/Turkey/Suzdalka/Nov-1/2005 и A/Chicken/Suzdalka/Nov-11/2005. Отмечена высокая степень корреляции (r = 0,89) между показателями вирулентности штаммов, полученными при интраназальном и аэрозольном инфицировании мышей. Первичными клетками-мишенями у мышей, респираторно инфицированных ВГП, является реснитчатые клетки воздухоносных путей и пневмоциты 1 и 2-го порядка.</p></abstract><trans-abstract xml:lang="en"><p>The studied strains of avian influenza virus A/H5N1 (AIV), isolated in the territory of the Russian Federation and CIS countries, can be classified into three groups according to their virulence for mice after intranasal and aerosol challenging: highly virulent strains [50 % aerosol lethal dose (ALD50) - &lt;3,0 lg 50 % embryonic infection doses (EID50)] - A/Chicken/Kurgan/05/2005, A/Chicken/Crimea/04/2005, A/Chicken/Omsk/06, A/Chicken/Krasnodar/02/06, A/Chicken/Dagestan/06; strains with mid-level virulence [LD50 (ALD50) - 3,0-4,5 lg EID50] - A/Duck/Kurgan/08/2005; and non-virulent strains [LD50 (ALD50) - &gt;4,5 lg EID50] - A/Turkey/Suzdalka/Nov-1/2005 and A/Chicken/Suzdalka/Nov-11/2005. Registered is the high degree of correlation (r = 0,89 ) between the indexes of virulence of the strains, obtained by means of intranasal and aerosol challenging of mice. The primary target-cells in mice, respiratory-infected by AIV, are the respiratory tract ciliated cells and pneumonocytes of I, II types.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>вирус гриппа птиц А/H5N1</kwd><kwd>мышь</kwd><kwd>интраназальное заражение</kwd><kwd>аэрозольное инфицирование</kwd><kwd>50 % летальная доза</kwd><kwd>респираторный тракт</kwd><kwd>клетка-мишень вируса</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Avian Influenza Virus A/H5N1</kwd><kwd>mouse</kwd><kwd>intranasal challenging</kwd><kwd>aerosol challenging</kwd><kwd>50 % lethal dose</kwd><kwd>respiratory tract</kwd><kwd>target-cell for virus</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Закс Л. 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