<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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">pmj</journal-id><journal-title-group><journal-title xml:lang="ru">Тихоокеанский медицинский журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Pacific Medical Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1609-1175</issn><publisher><publisher-name>TGMU</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.34215/1609-1175-2022-2-26-33</article-id><article-id custom-type="elpub" pub-id-type="custom">pmj-2333</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>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL RESEARCHES</subject></subj-group></article-categories><title-group><article-title>Заболеваемость COVID-19 медицинских работников: факторы риска заражения и развития тяжелых клинических форм</article-title><trans-title-group xml:lang="en"><trans-title>The morbidity rate of COVID-19 among medical workers: risk factors of getting infected and the development of severe clinical forms</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5441-854X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Платонова</surname><given-names>Т. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Platonova</surname><given-names>T. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Платонова Татьяна Александровна – канд. мед. наук, заведующий эпидемиологическим отделом, врач-эпидемиолог</p><p>620144, Екатеринбург, ул. Шейнкмана, 113</p><p>Тел. +7 (343) 344-27-67, доб.1894, +7 982-691-88-30</p></bio><bio xml:lang="en"><p>Platonova Tatyana Aleksandrovna - candidate of medical Sciences, head of the epidemiological Department - epidemiologist of the limited liability</p><p>620144, Yekaterinburg, Sheinkmana str., 113</p><p>+7 (343) 344-27-67 (1894), +7 982-691-88-30</p></bio><email xlink:type="simple">fill.1990@inbox.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>Голубкова Алла Александровна - д.м.н., профессор, ведущий научный сотрудник лаборатории инфекций, связанных с оказанием медицинской помощи</p><p>111123, г. Москва, ул. Новогиреевская, д. 3а</p><p>Тел. +7 912-617-39-85</p></bio><bio xml:lang="en"><p>Golubkova Alla Aleksandrovna - doctor of medical Sciences, Professor, leading researcher of the laboratory of infections associated with the provision of medical care</p><p>111123, Moscow, Novogireevskaya str., 3A</p><p>+7 912-617-39-85</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>Скляр</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Sklyar</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Скляр Михаил Семенович – д.м.н., генеральный директор</p><p>620144, г.Екатеринбург, ул.Шейнкмана, д.113</p><p>тел. +7 (343) 344-27-67, доб. 1000</p></bio><bio xml:lang="en"><p>Sklyar Mikhail Semyonovich - doctor of medical Sciences, general manager</p><p>620144, Yekaterinburg, Sheinkmana str., 113</p><p>тел. +7 (343) 344-27-67 (1000)</p></bio><email xlink:type="simple">info@ugmk-clinic.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/0000-0002-9749-4611</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Смирнова</surname><given-names>С. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Smirnova</surname><given-names>S. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Смирнова Светлана Сергеевна - к.м.н., руководитель Урало-Сибирского научно-методического центра по профилактике инфекций, связанных с оказанием медицинской помощи; доцент кафедры эпидемиологии, социальной гигиены и организации госсанэпидслужбы </p><p>620030, г.Екатеринбург, ул. Летняя, д.23</p><p>620028, г.Екатеринбург, ул. Репина, д.3</p><p>Тел. +7 (343) 261-99-47 (доб. 106), +7 908-917-59-86</p></bio><bio xml:lang="en"><p>Smirnova Svetlana Sergeevna - candidate of medical Sciences, head of the Ural-Siberian Scientific and Methodological Center for the Prevention of Infections Associated with the Provision of Medical Assistance; associate Professor of the Department of epidemiology, social hygiene and organization of the state sanitary and epidemiological service</p><p>620030, Ekaterinburg, Letnyaya str. 23</p><p>620028, Yekaterinburg, Repin str., 3</p><p>+7 (343) 261-99-47 (106), +7 908-917-59-86</p></bio><email xlink:type="simple">smirnova_ss69@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6236-4916</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Карбовничая</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Karbovnichaya</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Карбовничая Елена Александровна – заведующий клинико-диагностической лабораторией</p><p>620144, г.Екатеринбург, ул.Шейнкмана, д.113</p><p>Тел. +7 (343) 344-27-67, доб.1940, +7 909-008-15-50</p></bio><bio xml:lang="en"><p>Karbovnichaya Elena Aleksandrovna - head of the clinical and diagnostic laboratory</p><p>620144, Yekaterinburg, Sheinkmana str., 113</p><p>Тел. +7 (343) 344-27-67 (1940), +7 909-008-15-50</p></bio><email xlink:type="simple">KarbovnichaiaEA@ugmk-clinic.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/0000-0003-4836-8966</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Никитская</surname><given-names>А. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikitskaya</surname><given-names>A. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Никитская Анна Дмитриевна – врач-эпидемиолог</p><p>117049, г. Москва, Ленинский просп., д. 8</p><p>Тел.+7 (906) 751-23-44</p></bio><bio xml:lang="en"><p>Nikitskaya Anna Dmitrievna - - epidemiologist</p><p>117049, Moscow, Leninsky prospect, 8</p><p>+7 (906) 751-23-44</p></bio><email xlink:type="simple">NikiNiri@yandex.ru</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Европейский медицинский центр «УГМК-Здоровье»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>European medical center "UMMC-Health"</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Центральный научно-исследовательский институт эпидемиологии Роспотребнадзора; Российская медицинская академия непрерывного профессионального образования</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Central Research Institute of Epidemiology of Rospotrebnadzor; Russian Medical Academy of Continuing Professional Education</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Российская медицинская академия непрерывного профессионального образования; Екатеринбургский научно-исследовательский институт вирусных инфекций ФБУН «Государственный научный центр вирусологии и биотехнологии «Вектор» Роспотребнадзора</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russian Medical Academy of Continuing Professional Education; ERIVI, FBRI SRC VB «Vector» of Rospotrebnadzor</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Уральский государственный медицинский университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ural State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>22</day><month>06</month><year>2022</year></pub-date><volume>0</volume><issue>2</issue><fpage>26</fpage><lpage>33</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Платонова Т.А., Голубкова А.А., Скляр М.С., Смирнова С.С., Карбовничая Е.А., Никитская А.Д., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Платонова Т.А., Голубкова А.А., Скляр М.С., Смирнова С.С., Карбовничая Е.А., Никитская А.Д.</copyright-holder><copyright-holder xml:lang="en">Platonova T.A., Golubkova A.A., Sklyar M.S., Smirnova S.S., Karbovnichaya E.A., Nikitskaya A.D.</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.tmj-vgmu.ru/jour/article/view/2333">https://www.tmj-vgmu.ru/jour/article/view/2333</self-uri><abstract><p>Цель: оценить внепрофессиональные факторы риска заражения COVID-19 у медицинских работников и предикторы развития тяжелых клинических форм болезни.Материал и методы. Для анализа особенностей клинических проявлений COVID-19 и воздействия различных факторов риска у сотрудников МО были использованы две разработанные авторами онлайн-анкеты, которые заполнили 366 медицинских работников, ранее переболевших новой коронавирусной инфекцией, и 306 сотрудников, интактных по этому заболеванию.Результаты. При оценке факторов риска инфицирования SARS-CoV-2 было установлено, что такие факторы, как нерегулярный профилактический прием витамина D и поливитаминов, увеличивали риск заражения сотрудников МО в 1,5-2 раза. У большей части из них (281 или 76,8%) заболевание протекало в форме острой респираторной инфекции (ОРИ) легкой или средней степени тяжести, у 23,2% (85 чел.) имело место поражение легочной паренхимы в виде интерстициальной пневмонии. Наиболее тяжелые клинические формы COVID-19 возникали у сотрудников в возрастной группе старше 40 лет, с индексом массы тела, соответствующим избыточному весу (более 25,0), имеющих хронические заболевания мочеполовой системы, сахарный диабет, и с низкой физической активностью.Заключение. По итогам проведенного исследования получены данные об основных клинических проявлениях новой коронавирусной инфекции у медицинских работников, их выраженности при различных формах заболевания, определены ведущие внепрофессиональные факторы риска заражения и предикторы развития более тяжелых клинических форм COVID-19.</p></abstract><trans-abstract xml:lang="en"><p>Objective: The aim of the study was to assess non-professional risk factors for COVID-19 infection in medical workers and predictors of the development of severe clinical forms of the disease.Methods: The authors developed two online questionnaires to analyze the features of the clinical manifestations of COVID-19 and the impact of various risk factors on the employees of the Ministry of Defense. Questionnaires were filled out by 366 medical workers who had previously had a new coronavirus infection, and 306 employees who were intact for this disease.Results: When assessing the risk factors for SARS-CoV-2 infection, it was found that factors such as irregular preventive intake of vitamin D and multivitamins increased the risk of infection of employees of the Ministry of Defense by 1.5-2 times. The majority of employees (281 or 76.8%) suffered the disease in the form of acute respiratory infection (ARI) of mild or moderate severity, 23.2% (85 people) had a lesion of the pulmonary parenchyma in the form of interstitial pneumonia. The most severe clinical forms of COVID-19 occurred in employees in the age group older than 40 years, with a body mass index corresponding to overweight (more than 25.0), having chronic diseases of the genitourinary system, diabetes mellitus, and low physical activity.Conclusions: According to the results of the conducted study, the main clinical manifestations of the new coronavirus infection among medical workers, their severity in various forms of the disease, the leading non-professional risk factors for infection and predictors of the development of more severe clinical forms of COVID-19 were determined.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>COVID-19</kwd><kwd>медицинские работники</kwd><kwd>клинические проявления</kwd><kwd>факторы риска</kwd><kwd>предикторы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>COVID-19</kwd><kwd>medical professionals</kwd><kwd>clinical manifestations</kwd><kwd>risk factors</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">Гоми Р., Асгари Н., Хаджихейдари А., Эстеки Р., Бйабанаки Ф., Насиринасаб Ф. Пандемия COVID-19: систематический обзор современных данных. Инфекция и иммунитет. 2020;10(4):655-63.</mixed-citation><mixed-citation xml:lang="en">Gomi R, Asgari N, Hadzhihejdari A, Esteki R, Bjabanaki F, Nasirinasab F. The COVID-19 pandemic: a systematic review of the current evidence. Russian Journal of Infection and Immunity. 2020;10(4):655-63 (In Russ.)]. doi: 10.15789/2220-7619-TCP-1508.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Calò F, Russo A, Camaioni C, De Pascalis S, Coppola N. Burden, risk assessment, surveillance and management of SARS-CoV-2 infection in health workers: a scoping review. Infect Dis Poverty. 2020;9(1):139. doi: 10.1186/s40249-020-00756-6.</mixed-citation><mixed-citation xml:lang="en">Calò F, Russo A, Camaioni C, De Pascalis S, Coppola N. Burden, risk assessment, surveillance and management of SARS-CoV-2 infection in health workers: a scoping review. Infect Dis Poverty. 2020;9(1):139. doi: 10.1186/s40249-020-00756-6.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Hunter E, Price DA, Murphy E, van der Loeff IS, Baker KF, Lendrem D, Lendrem C, Schmid ML, Pareja-Cebrian L, Welch A, Payne BAI, Duncan CJA. First experience of COVID-19 screening of health-care workers in England. Lancet. 2020;395(10234):e77-e78. doi: 10.1016/S0140-6736(20)30970-3.</mixed-citation><mixed-citation xml:lang="en">Hunter E, Price DA, Murphy E, van der Loeff IS, Baker KF, Lendrem D, Lendrem C, Schmid ML, Pareja-Cebrian L, Welch A, Payne BAI, Duncan CJA. First experience of COVID-19 screening of health-care workers in England. Lancet. 2020;395(10234):e77-e78. doi: 10.1016/S0140-6736(20)30970-3.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Treibel TA, Manisty C, Burton M, McKnight Á, Lambourne J, Augusto JB, Couto-Parada X, Cutino-Moguel T, Noursadeghi M, Moon JC. COVID-19: PCR screening of asymptomatic healthcare workers at London hospital. Lancet. 2020;395(10237):1608-10. doi: 10.1016/S0140-6736(20)31100-4.</mixed-citation><mixed-citation xml:lang="en">Treibel TA, Manisty C, Burton M, McKnight Á, Lambourne J, Augusto JB, Couto-Parada X, Cutino-Moguel T, Noursadeghi M, Moon JC. COVID-19: PCR screening of asymptomatic healthcare workers at London hospital. Lancet. 2020;395(10237):1608-10. doi: 10.1016/S0140-6736(20)31100-4.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Tan Z, Khoo DWS, Zeng LA, Tien JC, Lee AKY, Ong YY, Teo MM, Abdullah HR. Protecting health care workers in the front line: Innovation in COVID-19 pandemic. J Glob Health. 2020;10(1):010357. doi: 10.7189/jogh.10.010357.</mixed-citation><mixed-citation xml:lang="en">Tan Z, Khoo DWS, Zeng LA, Tien JC, Lee AKY, Ong YY, Teo MM, Abdullah HR. Protecting health care workers in the front line: Innovation in COVID-19 pandemic. J Glob Health. 2020;10(1):010357. doi: 10.7189/jogh.10.010357.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Nguyen LH, Drew DA, Graham MS, Joshi AD, Guo CG, Ma W, Mehta RS, Warner ET, Sikavi DR, Lo CH, Kwon S, Song M, Mucci LA, Stampfer MJ, Willett WC, Eliassen AH, Hart JE, Chavarro JE, Rich-Edwards JW, Davies R, Capdevila J, Lee KA, Lochlainn MN, Varsavsky T, Sudre CH, Cardoso MJ, Wolf J, Spector TD, Ourselin S, Steves CJ, Chan AT; COronavirus Pandemic Epidemiology Consortium. Risk of COVID-19 among front-line health-care workers and the general community: a prospective cohort study. Lancet Public Health. 2020;5(9):e475–e483. doi: 10.1016/S2468-2667(20)30164-X.</mixed-citation><mixed-citation xml:lang="en">Nguyen LH, Drew DA, Graham MS, Joshi AD, Guo CG, Ma W, Mehta RS, Warner ET, Sikavi DR, Lo CH, Kwon S, Song M, Mucci LA, Stampfer MJ, Willett WC, Eliassen AH, Hart JE, Chavarro JE, Rich-Edwards JW, Davies R, Capdevila J, Lee KA, Lochlainn MN, Varsavsky T, Sudre CH, Cardoso MJ, Wolf J, Spector TD, Ourselin S, Steves CJ, Chan AT; COronavirus Pandemic Epidemiology Consortium. Risk of COVID-19 among front-line health-care workers and the general community: a prospective cohort study. Lancet Public Health. 2020;5(9):e475–e483. doi: 10.1016/S2468-2667(20)30164-X.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Alshekaili M, Hassan W, Al Said N, Al Sulaimani F, Jayapal SK, Al-Mawali A, Chan MF, Mahadevan S, Al-Adawi S. Factors associated with mental health outcomes across healthcare settings in Oman during COVID-19: frontline versus non-frontline healthcare workers. BMJ Open. 2020;10(10):e042030. doi: 10.1136/bmjopen-2020-042030.</mixed-citation><mixed-citation xml:lang="en">Alshekaili M, Hassan W, Al Said N, Al Sulaimani F, Jayapal SK, Al-Mawali A, Chan MF, Mahadevan S, Al-Adawi S. Factors associated with mental health outcomes across healthcare settings in Oman during COVID-19: frontline versus non-frontline healthcare workers. BMJ Open. 2020;10(10):e042030. doi: 10.1136/bmjopen-2020-042030.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Платонова Т.А., Голубкова А.А., Тутельян А.В., Смирнова С.С. Заболеваемость COVID-19 медицинских работников. Вопросы биобезопасности и факторы профессионального риска. Эпидемиология и Вакцинопрофилактика. 2021;20(2):4–11.</mixed-citation><mixed-citation xml:lang="en">Platonova TA, Golubkova AA, Tutelyan AV, Smirnova SS. The incidence of COVID-19 medical workers. The issues of biosafety and occupational risk factors. Epidemiology and Vaccinal Prevention. 2021;20(2):4–11 (In Russ.). doi: 10.31631/2073-3046-2021-20-2-4-11.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Chou R, Dana T, Buckley DI, Selph S, Fu R, Totten AM. Epidemiology of and Risk Factors for Coronavirus Infection in Health Care Workers: A Living Rapid Review. Ann Intern Med. 2020;173(2):120–36. doi: 10.7326/M20-1632.</mixed-citation><mixed-citation xml:lang="en">Chou R, Dana T, Buckley DI, Selph S, Fu R, Totten AM. Epidemiology of and Risk Factors for Coronavirus Infection in Health Care Workers: A Living Rapid Review. Ann Intern Med. 2020;173(2):120–36. doi: 10.7326/M20-1632.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Annweiler C, Cao Z, Sabatier JM. Point of view: Should COVID-19 patients be supplemented with vitamin D? Maturitas. 2020;140:24–6. doi: 10.1016/j.maturitas.2020.06.003.</mixed-citation><mixed-citation xml:lang="en">Annweiler C, Cao Z, Sabatier JM. Point of view: Should COVID-19 patients be supplemented with vitamin D? Maturitas. 2020;140:24–6. doi: 10.1016/j.maturitas.2020.06.003.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Ali N. Role of vitamin D in preventing of COVID-19 infection, progression and severity. J Infect Public Health. 2020;13(10):1373-80. doi: 10.1016/j.jiph.2020.06.021.</mixed-citation><mixed-citation xml:lang="en">Ali N. Role of vitamin D in preventing of COVID-19 infection, progression and severity. J Infect Public Health. 2020;13(10):1373-80. doi: 10.1016/j.jiph.2020.06.021.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Hastie CE, Mackay DF, Ho F, Celis-Morales CA, Katikireddi SV, Niedzwiedz CL, Jani BD, Welsh P, Mair FS, Gray SR, O'Donnell CA, Gill JM, Sattar N, Pell JP. Vitamin D concentrations and COVID-19 infection in UK Biobank. Diabetes Metab Syndr. 2020;14(4):561–65. doi: 10.1016/j.dsx.2020.04.050.</mixed-citation><mixed-citation xml:lang="en">Hastie CE, Mackay DF, Ho F, Celis-Morales CA, Katikireddi SV, Niedzwiedz CL, Jani BD, Welsh P, Mair FS, Gray SR, O'Donnell CA, Gill JM, Sattar N, Pell JP. Vitamin D concentrations and COVID-19 infection in UK Biobank. Diabetes Metab Syndr. 2020;14(4):561–65. doi: 10.1016/j.dsx.2020.04.050.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Ersöz A, Yılmaz TE. The association between micronutrient and hemogram values and prognostic factors in COVID-19 patients: A single-center experience from Turkey. Int J Clin Pract. 2021;75(6):e14078. doi: 10.1111/ijcp.14078.</mixed-citation><mixed-citation xml:lang="en">Ersöz A, Yılmaz TE. The association between micronutrient and hemogram values and prognostic factors in COVID-19 patients: A single-center experience from Turkey. Int J Clin Pract. 2021;75(6):e14078. doi: 10.1111/ijcp.14078.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Cramer H, Hannan N, Schloss J, Leach M, Lloyd I, Steel A. Multivitamins for acute respiratory tract infections: a rapid review. Adv Integr Med. 2020;7(4):227-31. doi: 10.1016/j.aimed.2020.07.010.</mixed-citation><mixed-citation xml:lang="en">Cramer H, Hannan N, Schloss J, Leach M, Lloyd I, Steel A. Multivitamins for acute respiratory tract infections: a rapid review. Adv Integr Med. 2020;7(4):227-31. doi: 10.1016/j.aimed.2020.07.010.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Parohan M, Yaghoubi S, Seraji A, Javanbakht MH, Sarraf P, Djalali M. Risk factors for mortality in patients with Coronavirus disease 2019 (COVID-19) infection: a systematic review and meta-analysis of observational studies. Aging Male. 2020;23(5):1416–24. doi: 10.1080/13685538.2020.1774748.</mixed-citation><mixed-citation xml:lang="en">Parohan M, Yaghoubi S, Seraji A, Javanbakht MH, Sarraf P, Djalali M. Risk factors for mortality in patients with Coronavirus disease 2019 (COVID-19) infection: a systematic review and meta-analysis of observational studies. Aging Male. 2020;23(5):1416–24. doi: 10.1080/13685538.2020.1774748.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
