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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">10.21055/0370-1069-2012-2(112)-65-68</article-id><article-id custom-type="elpub" pub-id-type="custom">microbe-799</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>ИММУНОЛОГИЯ, ПАТОГЕНЕЗ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>IMMUNOLOGY, PATHOGENESIS</subject></subj-group></article-categories><title-group><article-title>Диссеминация вируса гриппа птиц А/H5N1 при интраназальном инфицировании кур</article-title><trans-title-group xml:lang="en"><trans-title>Dissemination of Influenza A/H5N1 Virus after Intranasal Inoculation of Chickens</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>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">demina@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>Сергеев</surname><given-names>Ар. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sergeev</surname><given-names>Ar. A.</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>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>Шиков</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Shikov</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 contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сергеев</surname><given-names>Ал. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sergeev</surname><given-names>Al. A.</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>Берилло</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Berillo</surname><given-names>S. A.</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>Сергеева</surname><given-names>Е. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Sergeeva</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">ГНЦ вирусологии и биотехнологии «Вектор»<country>Россия</country></aff><aff xml:lang="en">State Research Centre of Virology and Biotechnology Vector<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2012</year></pub-date><pub-date pub-type="epub"><day>20</day><month>04</month><year>2012</year></pub-date><volume>0</volume><issue>2(112)</issue><fpage>65</fpage><lpage>68</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Демина О.К., Сергеев А.А., Пьянков О.В., Шиков А.Н., Сергеев А.А., Берилло С.А., Сергеева Е.И., Агафонов А.П., Сергеев А.Н., 2012</copyright-statement><copyright-year>2012</copyright-year><copyright-holder xml:lang="ru">Демина О.К., Сергеев А.А., Пьянков О.В., Шиков А.Н., Сергеев А.А., Берилло С.А., Сергеева Е.И., Агафонов А.П., Сергеев А.Н.</copyright-holder><copyright-holder xml:lang="en">Demina O.K., Sergeev A.A., P'yankov O.V., Shikov A.N., Sergeev A.A., Berillo S.A., Sergeeva E.I., Agafonov A.P., Sergeev A.N.</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/799">https://journal.microbe.ru/jour/article/view/799</self-uri><abstract><p>Изучена диссеминация вируса гриппа птиц (ВГП) в организме кур, инфицированных интраназально. Первичный орган накопления А/Н5N1 (штамм A/Chicken/Kurgan/05/2005) у кур находится в респираторном тракте животных (слизистая носовой полости), в котором вирус регистрируется уже через 18 ч после заражения, накопление патогена также наблюдается во многих органах и сыворотке крови кур и начинается через 30-42 ч после заражения. К моменту гибели животных (54 ч после заражения) концентрация вируса во всех исследованных пробах достигает максимальных значений. Наивысшие показатели накопления ВГП, превышающие 7 lg 50 % эмбриональных инфицирующих доз в г/(мл), отмечены в легких, сыворотке крови и почках животных. Показана высокая степень корреляции (коэффициент корреляции r=0,89) между результатами оценки концентрации ВГП путем титрования проб от животных с использованием куриных эмбрионов и ОТ-ПЦР в режиме реального времени.</p></abstract><trans-abstract xml:lang="en"><p>Studied was dissemination of avian influenza virus (AIV) in the organism of chickens after intranasal challenge with 10-100 LD50. The primary organ of accumulation of AIV A/H5N1 (A/Chicken/Kurgan/05/2005strain) is the respiratory tract (nasal mucosa), where the virus is registered in 18 hours after challenge. The accumulation of pathogen is observed in many organs and serum of chicken in 30-32 hours after challenge. The animals die in 54 hours, the concentration of virus reaches critical value in all studied samples. The highest AIV loads (7 lg of chicken embryo infective dose - EID50/g or ml) are registered in lungs, blood serum and kidneys of chicken. The results of AIV loads measuring using titration and real time RT-PCR show high degree of correlation (r=0.89).</p></trans-abstract><kwd-group xml:lang="ru"><kwd>вирус гриппа птиц А/H5N1</kwd><kwd>курица</kwd><kwd>интраназальное заражение</kwd><kwd>динамика накопления вируса</kwd><kwd>ОТ-ПЦР в режиме реального времени</kwd></kwd-group><kwd-group xml:lang="en"><kwd>avian influenza A/H5N1 virus</kwd><kwd>chicken</kwd><kwd>intranasal infection</kwd><kwd>dynamics of virus accumulation</kwd><kwd>RT-PCR in real time</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">Ашмарин И.П., Воробьев А.А. Статистические методы в микробиологических исследованиях. Л.; 1962.</mixed-citation><mixed-citation xml:lang="en">Ashmarin I.P., Vorob’ev A.A. [Statistical Methods in Microbiological Investigations]. 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