<?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">pulmo</journal-id><journal-title-group><journal-title xml:lang="ru">Пульмонология</journal-title><trans-title-group xml:lang="en"><trans-title>PULMONOLOGIYA</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0869-0189</issn><issn pub-type="epub">2541-9617</issn><publisher><publisher-name>Scientific and Practical Journal “PULMONOLOGIYA” LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18093/0869-0189-2022-32-6-849-853</article-id><article-id custom-type="elpub" pub-id-type="custom">pulmo-3628</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 STUDIES</subject></subj-group></article-categories><title-group><article-title>Сравнение показателей соотношений тромбоциты / лимфоциты и нейтрофилы / лимфоциты в качестве предикторов исхода COVID-19</article-title><trans-title-group xml:lang="en"><trans-title>The platelet-to-lymphocyte ratio versus neutrophil-to-lymphocyte ratio in prediction of COVID-19 outcome</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>Сулиман</surname><given-names>Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Suliman</surname><given-names>L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сулиман Люси - адъюнкт-профессор отделения торакальной медицины медицинского факультета Университета Мансуры.</p><p>35516, губернаторство Дакахлия, Эль-Мансура, ул. Эль-Гомхурия, 60</p></bio><bio xml:lang="en"><p>Lucy Suliman - Assistant Professor, Department of Chest Medicine, Faculty of Medicine, Mansoura University.</p><p>El Gomhouria st. 60, El Mansoura, Dakahlia Governorate, 35516</p></bio><email xlink:type="simple">lucisuliman@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7295-9793</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Элвасефи</surname><given-names>М.</given-names></name><name name-style="western" xml:lang="en"><surname>Elwasefy</surname><given-names>M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Элвасефи Мона - старший преподаватель отделения иммунологии и клинической патологии медицинского факультета Университета Мансуры.</p><p>35516, губернаторство Дакахлия, Эль-Мансура, ул. Эль-Гомхурия, 60</p></bio><bio xml:lang="en"><p>Mona Elwasefy - Assistant Professor, Department of Immunology and Clinical Pathology, Faculty of Medicine, Mansoura University.</p><p>El Gomhouria st. 60, El Mansoura, Dakahlia Governorate, 35516</p></bio><email xlink:type="simple">mona79oam@mans.edu.eg</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4073-1855</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фарраг</surname><given-names>Н. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Farrag</surname><given-names>N. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Фарраг Несрин Саад - старший преподаватель отделения общественного здоровья медицинского факультета Университета Мансуры.</p><p>35516, губернаторство Дакахлия, Эль-Мансура, ул. Эль-Гомхурия, 60</p></bio><bio xml:lang="en"><p>Nesrine Saad Farrag - Assistant Professor, Department of Public Health, Faculty of Medicine, Mansoura University.</p><p>El Gomhouria st. 60, El Mansoura, Dakahlia Governorate, 35516</p></bio><email xlink:type="simple">nesrine.farrag@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0684-4151</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Таваб</surname><given-names>Х. A.</given-names></name><name name-style="western" xml:lang="en"><surname>Tawab</surname><given-names>H. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Таваб Хосам Абдел - преподаватель отделения клинической патологии медицинского факультета Университета Мансуры.</p><p>35516, губернаторство Дакахлия, Эль-Мансура, ул. Эль-Гомхурия, 60</p></bio><bio xml:lang="en"><p>Hosam Abdel Tawab - Lecturer of clinical pathology, Department of Clinical Pathology, Faculty of Medicine, Mansoura University.</p><p>El Gomhouria st. 60, El Mansoura, Dakahlia Governorate, 35516</p></bio><email xlink:type="simple">wagihheba842@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8655-1820</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абделвахаб</surname><given-names>Х. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Abdelwahab</surname><given-names>H. W.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Абделвахаб Хеба Вагих - старший преподаватель отделения торакальной медицины медицинского факультета Университета Мансуры.</p><p>35516, губернаторство Дакахлия, Эль-Мансура, ул. Эль-Гомхурия, 60</p></bio><bio xml:lang="en"><p>Heba Wagih Abdelwahab - Assistant Professor, Department of Chest Medicine, Faculty of Medicine, Mansoura University.</p><p>El Gomhouria st. 60, El Mansoura, Dakahlia Governorate, 35516</p><p>tel.: (0020) 101-193-03-35</p></bio><email xlink:type="simple">wagihheba84@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Университет Мансуры</institution><country>Египет</country></aff><aff xml:lang="en"><institution>Mansoura University</institution><country>Egypt</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>12</day><month>12</month><year>2022</year></pub-date><volume>32</volume><issue>6</issue><fpage>849</fpage><lpage>853</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сулиман Л., Элвасефи М., Фарраг Н.С., Таваб Х.A., Абделвахаб Х.В., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Сулиман Л., Элвасефи М., Фарраг Н.С., Таваб Х.A., Абделвахаб Х.В.</copyright-holder><copyright-holder xml:lang="en">Suliman L., Elwasefy M., Farrag N.S., Tawab H.A., Abdelwahab H.W.</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.pulmonology.ru/pulm/article/view/3628">https://journal.pulmonology.ru/pulm/article/view/3628</self-uri><abstract><p>Клиническая картина является ненадежным показателем прогноза исхода новой коронавирусной инфекции (НКИ), поэтому для точной оценки и классификации прогноза необходим более объективный прогнозирующий фактор. У пациентов, перенесших НКИ, отмечается нарушение регуляции иммунного ответа со стороны лимфоцитов, в основном Т-лимфоцитов. Целью исследования явилось определение роли показателей соотношений тромбоциты / лимфоциты и нейтрофилы / лимфоциты при оценке прогноза COVID-19. Материалы и методы. В исследование были включены госпитализированные пациенты (n = 70) с подтвержденным COVID-19 (COronaVIrus Disease 2019). У всех пациентов проводились последовательное клиническое и рентгенологическое обследование и анализ крови. Лабораторные анализы выполнялись с помощью коммерческого набора. Соотношения показателей клеток крови рассчитывались путем деления их абсолютного количества. Результаты. Обнаружена незначимая связь между лабораторными показателями и степенью тяжести COVID-19. Выявлена значимая связь между степенью поражения легких по данным компьютерной томографии и показателем соотношения тромбоциты / лимфоциты (более высокое значение для L-типа; p = 0,001). У интубированных пациентов соотношение показателя тромбоциты / лимфоциты было значимо выше. Однако обнаружена незначимая связь между показателем соотношения нейтрофилы / лимфоциты и необходимостью интубации трахеи. Заключение. У пациентов с COVID-19 наблюдаются отклонения показателей рутинных анализов крови. Показатель соотношения тромбоциты / лимфоциты может служить биомаркером при прогнозировании течения COVID-19, а показатель соотношения лимфоциты / моноциты полезен при прогнозировании степени тяжести COVID-19.</p></abstract><trans-abstract xml:lang="en"><p>Clinical presentation is an undependable prognostic indicator of COVID-19 (COronaVIrus Disease 2019). So, a more objective predictor is needed to precisely evaluate and classify the prognosis. Immune dysregulation to lymphocytes, mainly T-lymphocytes, have been noticed between COVID-19 patients. The aim. This study was planned to determine the role of platelet-to-lymphocyte count ratio and neutrophil-to-lymphocyte ratio in assessment of COVID-19 prognosis. Methods. 70 hospitalized patients with confirmed COVID-19 were included in this study. All included patients underwent a consistent clinical, radiological and blood examination. Laboratory analysis was made by means of a commercially accessible kit. Blood cells ratios were computed by dividing their absolute counts. Results. Non-significant association was found between laboratory data and COVID-19 clinical severity. A significant association between CT classification and platelet-to-lymphocyte count ratio (higher value in L type; p = 0.001) was detected. Platelet-to-lymphocyte count ratio was significantly higher among intubated cases. However, Non-significant association was found between neutrophil-to-lymphocyte ratio and need of endotracheal intubation. Conclusion. Routine blood values are abnormal in patients with COVID-19. Platelet-to-lymphocyte count ratio ratios could be used as more meaningful biomarker than other values in predicting the prognosis of COVID-19. LMR helpful in COVID-19 severity.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>соотношение нейтрофилы / лимфоциты</kwd><kwd>соотношение тромбоциты / лимфоциты</kwd><kwd>COVID-19</kwd><kwd>новая коронавирусная инфекция</kwd></kwd-group><kwd-group xml:lang="en"><kwd>neutrophil-to-lymphocyte ratio</kwd><kwd>platelet-to-lymphocyte count ratio</kwd><kwd>COVID-19</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Авторы благодарят персонал Карантинной больницы Университета Мансуры за предоставленные данные пациентов, необходимые для написания этой статьи.</funding-statement><funding-statement xml:lang="en">The authors are grateful to the staff of the Mansoura University Quarantine Hospital for the provided patient data necessary for writing this article.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Prozan L., Shusterman E., Ablin J. et al. Prognostic value of neu-trophil-to-lymphocyte ratio in COVID-19 compared with Influenza and respiratory syncytial virus infection. Sci. Rep. 2021; 11 (1): 21519. DOI: 10.1038/s41598-021-00927-x.</mixed-citation><mixed-citation xml:lang="en">Prozan L., Shusterman E., Ablin J. et al. Prognostic value of neu-trophil-to-lymphocyte ratio in COVID-19 compared with Influenza and respiratory syncytial virus infection. Sci. Rep. 2021; 11 (1): 21519. DOI: 10.1038/s41598-021-00927-x.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Simadibrata D.M., Pandhita B.A.W., Ananta M.E., Tango T. Plate-let-to-lymphocyte ratio, a novel biomarker to predict the severity of COVID-19 patients: a systematic review and meta-analysis. J. Int. Care Soc. 2020; 23 (1): 20-26. DOI: 10.1177/1751143720969587.</mixed-citation><mixed-citation xml:lang="en">Simadibrata D.M., Pandhita B.A.W., Ananta M.E., Tango T. Plate-let-to-lymphocyte ratio, a novel biomarker to predict the severity of COVID-19 patients: a systematic review and meta-analysis. J. Int. Care Soc. 2020; 23 (1): 20-26. DOI: 10.1177/1751143720969587.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Qin C., Zhou L., Hu Z. et al. Dysregulation of immune response in patients with Coronavirus 2019 (COVID-19) in Wuhan, China. Clin. Infect. Dis. 2020; 71 (15): 762-768. DOI: 10.1093/cid/ciaa248.</mixed-citation><mixed-citation xml:lang="en">Qin C., Zhou L., Hu Z. et al. Dysregulation of immune response in patients with Coronavirus 2019 (COVID-19) in Wuhan, China. Clin. Infect. Dis. 2020; 71 (15): 762-768. DOI: 10.1093/cid/ciaa248.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Zhang M.Q., Wang X.H., Chen Y.L. et al. [Clinical features of 2019 novel coronavirus pneumonia in the early stage from a fever clinic in Beijing]. Zhonghua Jie He He Hu Xi Za Zhi. 2020; 43 (0): E013. DOI: 10.3760/cma.j.issn.1001-0939.2020.0013.</mixed-citation><mixed-citation xml:lang="en">Zhang M.Q., Wang X.H., Chen Y.L. et al. [Clinical features of 2019 novel coronavirus pneumonia in the early stage from a fever clinic in Beijing]. Zhonghua Jie He He Hu Xi Za Zhi. 2020; 43 (0): E013. DOI: 10.3760/cma.j.issn.1001-0939.2020.0013.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Sarkar S., Kannan S., Khanna P., Singh A.K. Role of platelet-to-lym-phocyte count ratio (PLR), as a prognostic indicator in COVID-19: a systematic review and meta-analysis. J. Med. Virol. 2022; 94 (1): 211-221. DOI: 10.1002/jmv.27297.</mixed-citation><mixed-citation xml:lang="en">Sarkar S., Kannan S., Khanna P., Singh A.K. Role of platelet-to-lym-phocyte count ratio (PLR), as a prognostic indicator in COVID-19: a systematic review and meta-analysis. J. Med. Virol. 2022; 94 (1): 211-221. DOI: 10.1002/jmv.27297.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Ye G.L., Chen Q., Chen X. et al. The prognostic role of plate-let-to-lymphocyte ratio in patients with acute heart failure: a cohort study. Sci. Rep. 2019; 9 (1): 10639. DOI: 10.1038/s41598-019-47143-2.</mixed-citation><mixed-citation xml:lang="en">Ye G.L., Chen Q., Chen X. et al. The prognostic role of plate-let-to-lymphocyte ratio in patients with acute heart failure: a cohort study. Sci. Rep. 2019; 9 (1): 10639. DOI: 10.1038/s41598-019-47143-2.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Forget P. et al. What is the normal value of the neutrophil-to-lympho-cyte ratio? BMC. Res. Notes. 2017; 10 (1): 12. DOI: 10.1186/s13104-016-2335-5.</mixed-citation><mixed-citation xml:lang="en">Forget P. et al. What is the normal value of the neutrophil-to-lymphocyte ratio? BMC. Res. Notes. 2017; 10 (1): 12. DOI: 10.1186/s13104-016-2335-5.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Tomita M., Shimizu T., Ayabe T. et al. Preoperative neutrophil to lymphocyte ratio as a prognostic predictor after curative resection for non-small cell lung cancer. Anticancer Res. 2011; 31 (9): 2995-2998. Available at: https://ar.iiarjournals.org/content/anticanres/31/9/2995.full.pdf</mixed-citation><mixed-citation xml:lang="en">Tomita M., Shimizu T., Ayabe T. et al. Preoperative neutrophil to lymphocyte ratio as a prognostic predictor after curative resection for non-small cell lung cancer. Anticancer Res. 2011; 31 (9): 2995-2998. Available at: https://ar.iiarjournals.org/content/anticanres/31/9/2995.full.pdf</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Kim H. S. Han K.H., Chung H.H. et al. Neutrophil to lymphocyte ratio for preoperative diagnosis of uterine sarcomas: a case-matched comparison. Eur. J. Surg. Oncol. 2010; 36 (7): 691-698. DOI: 10.1016/j.ejso.2010.05.004.</mixed-citation><mixed-citation xml:lang="en">Kim H. S. Han K.H., Chung H.H. et al. Neutrophil to lymphocyte ratio for preoperative diagnosis of uterine sarcomas: a case-matched comparison. Eur. J. Surg. Oncol. 2010; 36 (7): 691-698. DOI: 10.1016/j.ejso.2010.05.004.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Gattinoni L., Chiumello D., Caironi P. et al. COVID-19 pneumonia: different respiratory treatments for different phenotypes? Intensive Care Med. 2020; 46 (6): 1099-1102. DOI: 10.1007/s00134-020-06033-2.</mixed-citation><mixed-citation xml:lang="en">Gattinoni L., Chiumello D., Caironi P. et al. COVID-19 pneumonia: different respiratory treatments for different phenotypes? Intensive Care Med. 2020; 46 (6): 1099-1102. DOI: 10.1007/s00134-020-06033-2.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Mattiuzzi C., Lippi G. Which lessons shall we learn from the 2019 novel coronavirus outbreak? Ann. Transl. Med. 2020; 8 (3): 48. DOI: 10.21037/atm.2020.02.06.</mixed-citation><mixed-citation xml:lang="en">Mattiuzzi C., Lippi G. Which lessons shall we learn from the 2019 novel coronavirus outbreak? Ann. Transl. Med. 2020; 8 (3): 48. DOI: 10.21037/atm.2020.02.06.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Qu R., Ling Y., Zhang Y.H. et al. Platelet-to-lymphocyte ratio is associated with prognosis in patients with coronavirus disease-19. J. Med. Virol. 2020; 92 (9): 1533-1541. DOI: 10.1002/jmv.25767.</mixed-citation><mixed-citation xml:lang="en">Qu R., Ling Y., Zhang Y.H. et al. Platelet-to-lymphocyte ratio is associated with prognosis in patients with coronavirus disease-19. J. Med. Virol. 2020; 92 (9): 1533-1541. DOI: 10.1002/jmv.25767.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Jenne C.N., Kubes P. Platelets in inflammation and infection. Platelets. 2015; 26 (4): 286-292. DOI: 10.3109/09537104.2015.1010441.</mixed-citation><mixed-citation xml:lang="en">Jenne C.N., Kubes P. Platelets in inflammation and infection. Platelets. 2015; 26 (4): 286-292. DOI: 10.3109/09537104.2015.1010441.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Yang A.P., Liu J.P., Tao W.Q., Li H.M. The diagnostic and predictive role of NLR, d-NLR and PLR in COVID-19 patients. Int. Immunopharmacol. 2020; 84: 106504. DOI: 10.1016/j.intimp.2020.106504.</mixed-citation><mixed-citation xml:lang="en">Yang A.P., Liu J.P., Tao W.Q., Li H.M. The diagnostic and predictive role of NLR, d-NLR and PLR in COVID-19 patients. Int. Immunopharmacol. 2020; 84: 106504. DOI: 10.1016/j.intimp.2020.106504.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Erdogan A., Can F.E., Gonullu H. Evaluation of the prognostic role of NLR, LMR, PLR, and LCR ratio in COVID-19 patients. J. Med. Virol. 2021; 93 (9): 5555-5559. DOI: 10.1002/jmv.27097.</mixed-citation><mixed-citation xml:lang="en">Erdogan A., Can F.E., Gonullu H. Evaluation of the prognostic role of NLR, LMR, PLR, and LCR ratio in COVID-19 patients. J. Med. Virol. 2021; 93 (9): 5555-5559. DOI: 10.1002/jmv.27097.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Shang W., Dong J., Ren Y. et al. The value of clinical parameters in predicting the severity of COVID-19. J. Med. Virol. 2020; 92 (10): 2188-2192. DOI: 10.1002/jmv.26031.</mixed-citation><mixed-citation xml:lang="en">Shang W., Dong J., Ren Y. et al. The value of clinical parameters in predicting the severity of COVID-19. J. Med. Virol. 2020; 92 (10): 2188-2192. DOI: 10.1002/jmv.26031.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Xu Z., Shi L., Wang Y. et al. Pathological findings of COVID-19 associated with acute respiratory distress syndrome. Lancet Respir. Med. 2020; 8 (4): 420-422. DOI: 10.1016/S2213-2600(20)30076-X.</mixed-citation><mixed-citation xml:lang="en">Xu Z., Shi L., Wang Y. et al. Pathological findings of COVID-19 associated with acute respiratory distress syndrome. Lancet Respir. Med. 2020; 8 (4): 420-422. DOI: 10.1016/S2213-2600(20)30076-X.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Wang Z., Yang B., Li Q. et al. Clinical features of 69 cases with coronavirus disease 2019 in Wuhan, China. Clin. Infect. Dis. 2020; 71 (15): 769-777. DOI: 10.1093/cid/ciaa272.</mixed-citation><mixed-citation xml:lang="en">Wang Z., Yang B., Li Q. et al. Clinical features of 69 cases with coronavirus disease 2019 in Wuhan, China. Clin. Infect. Dis. 2020; 71 (15): 769-777. DOI: 10.1093/cid/ciaa272.</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>
