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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">Epidemiology and Infectious Diseases</journal-id><journal-title-group><journal-title xml:lang="en">Epidemiology and Infectious Diseases</journal-title><trans-title-group xml:lang="ru"><trans-title>Эпидемиология и инфекционные болезни</trans-title></trans-title-group></journal-title-group><issn publication-format="print">3034-2007</issn><issn publication-format="electronic">3034-2015</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">79692</article-id><article-id pub-id-type="doi">10.17816/EID79692</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Original study articles</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">Epidemiological features of hepatitis B in the Russian Arctic</article-title><trans-title-group xml:lang="ru"><trans-title>Эпидемиологические особенности гепатита В в Российской Арктике</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0625-0284</contrib-id><contrib-id contrib-id-type="spin">5281-1670</contrib-id><name-alternatives><name xml:lang="en"><surname>Fomicheva</surname><given-names>Anastasia A.</given-names></name><name xml:lang="ru"><surname>Фомичева</surname><given-names>Анастасия Александровна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Junior Research Associate</p></bio><bio xml:lang="ru"><p>м.н.с.</p></bio><email>anastasia.fomichova@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6138-4330</contrib-id><contrib-id contrib-id-type="spin">2314-2076</contrib-id><name-alternatives><name xml:lang="en"><surname>Pimenov</surname><given-names>Nikolay N.</given-names></name><name xml:lang="ru"><surname>Пименов</surname><given-names>Николай Николаевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand. Sci. (Med.)</p></bio><bio xml:lang="ru"><p>к.м.н.</p></bio><email>n.pimenov@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7681-5455</contrib-id><contrib-id contrib-id-type="spin">2810-3381</contrib-id><name-alternatives><name xml:lang="en"><surname>Komarova</surname><given-names>Svetlana V.</given-names></name><name xml:lang="ru"><surname>Комарова</surname><given-names>Светлана Васильевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Research Associate</p></bio><bio xml:lang="ru"><p>н.с.</p></bio><email>komarova.056@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7319-0712</contrib-id><contrib-id contrib-id-type="spin">7260-6505</contrib-id><name-alternatives><name xml:lang="en"><surname>Urtikov</surname><given-names>Aleksandr V.</given-names></name><name xml:lang="ru"><surname>Уртиков</surname><given-names>Александр Валерьевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Research Associate</p></bio><bio xml:lang="ru"><p>н.с.</p></bio><email>urtikovav@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4917-3992</contrib-id><contrib-id contrib-id-type="spin">7410-3130</contrib-id><name-alternatives><name xml:lang="en"><surname>Paevskaya</surname><given-names>Olga A.</given-names></name><name xml:lang="ru"><surname>Паевская</surname><given-names>Ольга Александровна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand. Sci. (Med.), Assistant Lecturer</p></bio><bio xml:lang="ru"><p>к.м.н., ассистент кафедры</p></bio><email>paevskaya_o_a@staff.sechenov.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7823-9287</contrib-id><contrib-id contrib-id-type="spin">3734-7392</contrib-id><name-alternatives><name xml:lang="en"><surname>Tsapkova</surname><given-names>Natalya N.</given-names></name><name xml:lang="ru"><surname>Цапкова</surname><given-names>Наталья Николаевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand. Sci. (Med.), Associate Professor</p></bio><bio xml:lang="ru"><p>к.м.н, доцент кафедры</p></bio><email>tsapkova.natali@yandex.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6303-9293</contrib-id><contrib-id contrib-id-type="spin">2336-4545</contrib-id><name-alternatives><name xml:lang="en"><surname>Chulanov</surname><given-names>Vladimir P.</given-names></name><name xml:lang="ru"><surname>Чуланов</surname><given-names>Владимир Петрович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Dr. Sci. (Med.), Professor</p></bio><bio xml:lang="ru"><p>д.м.н., профессор</p></bio><email>ChulanovVP@nmrc.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">National Medical Research Center of Phthisiopulmonology and Infectious Diseases</institution></aff><aff><institution xml:lang="ru">Национальный медицинский исследовательский центр фтизиопульмонологии и инфекционных заболеваний</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">The First Sechenov Moscow State Medical University (Sechenov University)</institution></aff><aff><institution xml:lang="ru">Первый Московский государственный медицинский университет имени И.М. Сеченова (Сеченовский Университет)</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2021-10-11" publication-format="electronic"><day>11</day><month>10</month><year>2021</year></pub-date><pub-date date-type="pub" iso-8601-date="2020-11-15" publication-format="electronic"><day>15</day><month>11</month><year>2020</year></pub-date><volume>25</volume><issue>6</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>253</fpage><lpage>263</lpage><history><date date-type="received" iso-8601-date="2021-09-08"><day>08</day><month>09</month><year>2021</year></date><date date-type="accepted" iso-8601-date="2021-10-04"><day>04</day><month>10</month><year>2021</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2020, Eco-vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2020, ООО "Эко-вектор"</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="en">Eco-vector</copyright-holder><copyright-holder xml:lang="ru">ООО "Эко-вектор"</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://rjeid.com/1560-9529/article/view/79692">https://rjeid.com/1560-9529/article/view/79692</self-uri><abstract xml:lang="en"><p><bold>BACKGROUND:</bold> Hepatitis B is an urgent medical and social problem in Russia.</p> <p><bold>AIM:</bold> To determine the epidemiological features of the hepatitis B in the Russian Arctic.</p> <p><bold>MATERIALS AND METHODS:</bold> We carried out a retrospective analysis of the incidence of hepatitis B (acute and chronic forms) in 9 Russian Arctic regions, 3 subarctic regions (Khanty-Mansiysk Autonomous Okrug, Magadan Region, Kamchatka Territory) and Russian Federation in 1999–2019. We also studied the prevalence of chronic hepatitis B and vaccination data against hepatitis B in these territories.</p> <p><bold>RESULTS:</bold> From 1999 to 2019 the incidence of acute hepatitis B in three subarctic regions decreased 166 times (from 66.5 to 0.4 per 100 thousand population), in the Arctic zone of 74.5 times (from 29.8 to 0.4 per 100 thousand population) and 73 times in Russia (from 43.8 to 0.6). The incidence of chronic hepatitis forms in the same period in the Arctic zone decreased by 8.6 times (from 140.1 to 16.3), 5.8 times in the subarctic regions (from 116.6 to 20.0) and 5.7 times in Russia (from 96.3 to 16.8). In 2018, the results of the prevalence of chronic hepatitis B in the Arctic zone (697.3) was higher than in Russia by 98% (352.1) and higher in the subarctic regions by 67% (588.6). Timely coverage of hepatitis vaccination in children aged 12 months in the Russian Federation, the Arctic zone and the subarctic regions is maintained at a high level (more than 90%) from 2004 in 2019. Coverage of children by vaccination to 17 years inclusive and adults up to 35 years on these territories also exceeded 90%.</p> <p><bold>CONCLUSIONS:</bold> Vaccination against hepatitis B in the Russian Federation led to a significant decrease in the incidence of this infection in the Russian Arctic. High prevalence of infection indicates the need to continue the program of mass vaccination and the timely introduction of the first dose of vaccine newborns. To reduce the risk of cirrhosis and liver cancer, it is necessary to increase the availability of diagnosis of the disease and its possible outcomes in the Arctic regions and timely provision of antiviral treatment of all patients.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Цель исследования </bold>― определить эпидемиологические особенности гепатита В на территории Российской Арктики.</p> <p><bold>Материал и методы.</bold> Проведён ретроспективный анализ заболеваемости острым гепатитом В и хроническими формами инфекции (хронический гепатит В и «носительство вируса гепатита В» суммарно) в 9 регионах Арктической зоны Российской Федерации (АЗРФ), 3 приарктических регионах (Ханты-Мансийский автономный округ, Магаданская область, Камчатский край) и Российской Федерации (РФ) с 1999 по 2019 г. Изучены показатели распространённости хронических форм инфекции и данные по вакцинации против гепатита В населения указанных территорий.</p> <p><bold>Результаты.</bold> С 1999 по 2019 г. показатель заболеваемости острым гепатитом В в приарктических регионах снизился в 166 раз (с 66,5 до 0,4 на 100 тыс. населения), в АЗРФ ― в 74,5 раза (с 29,8 до 0,4), по РФ в целом ― в 73 раза (с 43,8 до 0,6). Показатель заболеваемости хроническими формами за аналогичный период в АЗРФ снизился в 8,6 раза (со 140,1 до 16,3), в приарктических регионах ― в 5,8 раза (со 116,6 до 20,0), по РФ в целом ― в 5,7 раза (с 96,3 до 16,8). В 2018 г. показатели распространённости хронических форм в 9 регионах АЗРФ (697,3) и приарктических регионах (588,6) превысили среднероссийский уровень (352,1) в 1,98 и 1,67 раза соответственно. Своевременный охват вакцинацией против гепатита В детей в возрасте 12 мес в РФ, АЗРФ и приарктических регионах поддерживается на высоком уровне (более 90%) с 2004 г. Охват прививками детей до 17 лет включительно и взрослых до 35 лет включительно в 2019 г. также превысил 90% на всех изученных территориях.</p> <p><bold>Заключение.</bold> Несмотря на выраженное снижение заболеваемости острым гепатитом В и хроническими формами инфекции на территории Российской Арктики, наблюдаются высокие показатели распространённости хронического гепатита В, что свидетельствует о необходимости продолжения массовой вакцинации населения против гепатита В, повышения доступности диагностики заболевания и его возможных исходов, а также своевременного обеспечения всех пациентов противовирусным лечением.</p></trans-abstract><kwd-group xml:lang="en"><kwd>hepatitis</kwd><kwd>Arctic</kwd><kwd>epidemiology</kwd><kwd>incidence</kwd><kwd>prevalence</kwd><kwd>vaccination</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>гепатит</kwd><kwd>Арктика</kwd><kwd>эпидемиология</kwd><kwd>заболеваемость</kwd><kwd>распространённость</kwd><kwd>вакцинация</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Lukin YF. 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