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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">epidemiology</journal-id><journal-title-group><journal-title xml:lang="ru">Эпидемиология и Вакцинопрофилактика</journal-title><trans-title-group xml:lang="en"><trans-title>Epidemiology and Vaccinal Prevention</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-3046</issn><issn pub-type="epub">2619-0494</issn><publisher><publisher-name>«Numicom» LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31631/2073-3046-2021-20-5-89-97</article-id><article-id custom-type="elpub" pub-id-type="custom">epidemiology-1367</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>ПРАКТИЧЕСКИЕ АСПЕКТЫ ЭПИДЕМИОЛОГИИ И ВАКЦИНОПРОФИЛАКТИКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PRACTICAL ASPECTS OF EPIDEMIOLOGY AND VACCINE PREVENTION</subject></subj-group></article-categories><title-group><article-title>Эпидемиологические особенности вспышек COVID-19 в медицинских организациях</article-title><trans-title-group xml:lang="en"><trans-title>Outbreaks of COVID-19 in Medical organizations</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5003-1110</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сисин</surname><given-names>Е. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Sisin</surname><given-names>Y. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Евгений Игоревич Сисин – к. м. н., врач-эпидемиолог отдела обеспече- ния эпидемиологического надзора</p><p> г. Ханты-Мансийск, Рознина, 72 Россия.</p><p>+7 (904) 450-45-38</p></bio><bio xml:lang="en"><p>Yevgeniy I. Sisin  – Cand. Sci. (Med.), epidemiologist of the Department of epidemiological surveillance</p><p>Yugra, str. Roznina, 72, Khanty-Mansiysk, Russia</p></bio><email xlink:type="simple">evg-sisin1@yandex.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/0000-0003-4812-2165</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Голубкова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Golubkova</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алла Александровна Голубкова – д. м. н., профессор, в. н. с. лабора- тории инфекций, связанных с  оказанием медицинской помощи</p><p>Москва</p></bio><bio xml:lang="en"><p>Alla A. Golubkova – Dr. Sci. (Med.), Professor, leading researcher laboratory of infections related to medical care</p><p>Moscow</p></bio><email xlink:type="simple">allagolubkova@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Козлова</surname><given-names>И. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozlova</surname><given-names>I. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ирина Ивановна Козлова – главный врач</p><p>г. Ханты-Мансийск</p></bio><bio xml:lang="en"><p>Irina I. Kozlova – chief physician </p><p>Yugra, Khanty-Mansiysk</p></bio><email xlink:type="simple">epid_fgu3@xmao.su</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>Остапенко</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ostapenko</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Надежда Алексеевна Остапенко – заведующая отделом обеспечения эпидемиологического надзора бюджетного учреждения здравоохранения</p><p>г. Ханты-Мансийск</p></bio><bio xml:lang="en"><p>Nadezhda A. Ostapenko – head of the Department of epidemiological surveillance</p><p>Yugra, Khanty-Mansiysk</p></bio><email xlink:type="simple">ostapenko-na86@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФБУЗ «Центр гигиены и эпидемиологии в Ханты-Мансийском автономном округе – Югре»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal budgetary institution of health care «Сenter of hygiene and epidemiology in the Khanty-Mansi аutonomous оkrug-Yugra»</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФБУН «Центральный научно-исследовательский институт эпидемиологии» Роспотребнадзора</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Central Institute of Epidemiology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>04</day><month>11</month><year>2021</year></pub-date><volume>20</volume><issue>5</issue><fpage>89</fpage><lpage>97</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сисин Е.И., Голубкова А.А., Козлова И.И., Остапенко Н.А., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Сисин Е.И., Голубкова А.А., Козлова И.И., Остапенко Н.А.</copyright-holder><copyright-holder xml:lang="en">Sisin Y.I., Golubkova A.A., Kozlova I.I., Ostapenko N.A.</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://www.epidemvac.ru/jour/article/view/1367">https://www.epidemvac.ru/jour/article/view/1367</self-uri><abstract><sec><title>Актуальность</title><p>Актуальность. Предупреждение вспышечной заболеваемости новой коронавирусной инфекцией COVID-19 в медицинских организациях (МО) – одна из задач, стоящих перед службой Роспотребнадзора и практическим здравоохранением. Анализ причин возникновения и условий распространения SARS-CoV-2 в МО позволяет определить наиболее эффективные мероприятия для сдерживания инфекции и предупреждения ее распространения в очаге.</p></sec><sec><title>Цель</title><p>Цель. По данным анализа вспышечной заболеваемости дать характеристику эпидемиологических особенностей COVID-19 при ее внутрибольничном распространении в МО.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Проанализированы данные отчетных форм «Общие сведения о заболевших с положительным COVID-19», «Общие сведения о заболевших внебольничными пневмониями с положительным COVID-19» (138 единиц информации), копии «Актов эпидемиологического расследования очагов инфекционных (паразитарных) болезней с установлением причинно-следственной связи» (57 единиц информации), копии внеочередных донесений о чрезвычайной ситуации санитарно-эпидемиологического характера (57 единиц информации). В работе использованы эпидемиологический и статистический методы исследования.</p></sec><sec><title>Результаты</title><p>Результаты. При анализе 57 вспышек COVID-19 в 30 МО было установлено, что 70,2% вспышек были зарегистрированы в многопрофильных больницах, 12,3% – в специализированных организациях неинфекционного профиля, 10,5% – в поликлиниках, 1,8% – на станции скорой медицинской помощи. Общее число пострадавших при распространении инфекции составило 961 чел., преимущественно взрослых. Доля детей была незначительна – 1,7% (15 человек). Особенностью вспышек в МО было активное вовлечение в эпидемический процесс сотрудников. Среди заболевших при распространении инфекции в очагах доля сотрудников МО составила 62,6%, в том числе врачей –16,6%, средних и младших медицинских работников – 50,6% и 11,3% соответственно и прочих категорий – 21,5%. При внутрибольничных вспышках COVID-19 индекс очаговости (ИО) соответствовал 16,9, а средняя продолжительность существования очага была равной 32,4 суток.</p></sec><sec><title>Заключение</title><p>Заключение. Вспышечная заболеваемость COVID-19 в МО, как правило, возникала при эпидемическом неблагополучии на территории дислокации МО. Особенностью внутрибольничных вспышек была значительная доля взрослых (98,3%), преимущественно работников МО, которые зачастую были активными источниками инфекции, а также вовлечение в эпидемический процесс структурных подразделений и больниц для взрослых, высокая частота этиологической расшифровки вспышек (95,9%), значительная доля бессимптомных форм инфекции и носительства и сложности дифференциальной диагностики случаев внеи внутрибольничного инфицирования. Знание закономерности возникновения и распространения заболеваемости новой коронавирусной инфекцией в МО может быть успешно использовано в практической противоэпидемической работе.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Relevance</title><p>Relevance. Prevention of the outbreak of a new coronavirus infection in medical organizations (MO) is one of the tasks facing the Rospotrebnadzor service and practical health care. Analysis of the causes and conditions of the spread of SARS-CoV-2 in the MO allows us to determine the most effective measures to contain the infection and prevent the occurrence of subsequent diseases in the focus.</p><p>The aim is to characterize the epidemiological features of a new coronavirus infection during its nosocomial spread in medical organizations based on the analysis of outbreak incidence.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The data of the reporting forms «General information on patients with positive COVID-19», «General information on patients with community-acquired pneumonia with positive COVID-19» (138 pieces of information), copies of «Acts of epidemiological investigation of foci of infectious (parasitic) diseases with the establishment of a causal relationship» (57 pieces of information), copies of extraordinary reports on an emergency of a sanitary and epidemiological nature (57 pieces of information) were analyzed. The work uses epidemiological and statistical methods of research.</p></sec><sec><title>Results</title><p>Results. When analyzing 57 COVID-19 outbreaks in 30 medical organizations, it was found that the outbreak incidence was more often registered in multidisciplinary hospitals – 70.2% compared to 12.3% in specialized organizations of noninfectious profile, 10.5% of outbreaks were in polyclinics, 1.8% at emergency medical stations. The total number of people affected by the spread of the infection was 961, with a small proportion of children (15 people or 1.7%). Among those who fell ill with the spread of infection in the foci, the share of employees of medical organizations was 62.6%, including doctors – 16.6%, middle and junior medical workers-50.6% and 11.3%, respectively, and other categories – 21.5%. In nosocomial outbreaks of COVID-19, the focality index corresponded to 16.9, and the average duration of the focus was 32.4 days. The construction of the so-called «combined» outbreak diagram in the course of the epidanalysis allowed us to establish its total duration, which was 71 days, with the peaks of morbidity within the outbreak at intervals of 3–7 days, the greatest number of cases in the 1st and 8th days, and the gradual «extinction» of its activity in dynamics.</p></sec><sec><title>Conclusions</title><p>Conclusions. The outbreak of COVID-19 in medical organizations usually occurred when there was an epidemic problem with COVID-19 in the territory. The peculiarity of nosocomial outbreaks was a significant proportion of adults (98.3%), mainly employees of medical organizations, who were often active sources of infection, as well as the involvement of structural units and hospitals for adults in the epidemic process, a high frequency of etiological interpretation of outbreaks (95.9%), a significant proportion of asymptomatic forms of infection and carrier, and the complexity of differential diagnosis of cases of out – of-hospital and nosocomial infection. The patterns of occurrence and spread of morbidity in medical organizations can be used in practical anti-epidemic work.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>COVID-19</kwd><kwd>вспышки в медицинских организациях</kwd><kwd>условия распространения SARS-CoV-2</kwd><kwd>эпидемиологические особенности</kwd></kwd-group><kwd-group xml:lang="en"><kwd>COVID-19</kwd><kwd>outbreaks in medical organizations</kwd><kwd>conditions for the spread of SARS-CoV-2</kwd><kwd>epidemiological features</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">Головерова Ю. А., Марьин Г. Г., Голубкова А. А. и др. Актуальность риска распространения инфекций, связанных с оказанием медицинской помощи, среди медицинских работников на современном этапе. 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