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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">Russian Journal of Infection and Immunity</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Infection and Immunity</journal-title><trans-title-group xml:lang="ru"><trans-title>Инфекция и иммунитет</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2220-7619</issn><issn publication-format="electronic">2313-7398</issn><publisher><publisher-name xml:lang="en">SPb RAACI</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">17085</article-id><article-id pub-id-type="doi">10.15789/2220-7619-DIS-17085</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</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">Differences in complete blood count parameters in patients with COVID-19 diagnosis based on vaccination status (literature review)</article-title><trans-title-group xml:lang="ru"><trans-title>Различия показателей общего анализа крови у пациентов с диагнозом COVID-19 в зависимости от статуса вакцинации</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0281-6903</contrib-id><name-alternatives><name xml:lang="en"><surname>Konyuhov</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Конюхов</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Resident of the Department of Epidemiology and Modern Technologies Vaccination, Doctor-epidemiologist, Clinic for Professional and Professionally-induced Diseases</p></bio><bio xml:lang="ru"><p>ординатор кафедры эпидемиологии и современных технологий вакцинации, врач-эпидемиолог клиники профессиональных и профессионально-обусловленных болезней</p></bio><email>poiuytyui@yandex.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kostinova</surname><given-names>A. M.</given-names></name><name xml:lang="ru"><surname>Костинова</surname><given-names>А. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Assistant Professor, Department of Epidemiology and Modern Vaccination Technologies, Researcher, Department of Immunopathology</p></bio><bio xml:lang="ru"><p>ассистент кафедры эпидемиологии и современных технологий вакцинации, научный сотрудник</p></bio><email>poiuytyui@yandex.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Loktionova</surname><given-names>M. N.</given-names></name><name xml:lang="ru"><surname>Локтионова</surname><given-names>М. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD (Medicine), Associate Professor, Department of Epidemiology and Modern Vaccination Technologies, Senior researcher, Laboratory of Epidemiology of Natural Focal Infections</p></bio><bio xml:lang="ru"><p>к.м.н., доцент кафедры эпидемиологии и современных технологий вакцинации, старший научный сотрудник лаборатории эпидемиологии природно-очаговых инфекций</p></bio><email>poiuytyui@yandex.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kostinov</surname><given-names>M. P.</given-names></name><name xml:lang="ru"><surname>Костинов</surname><given-names>М. П.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Honored Scientist of the Russian Federation, RAS Corresponding Member, DSc (Medicine), Professor, Head of the Department of Epidemiology and Modern Vaccination Technologies, Head of the Laboratory for Vaccine Prevention and Immunotherapy of Allergic Diseases</p></bio><bio xml:lang="ru"><p>заслуженный деятель науки Российской Федерации, член-корреспондент РАН, д.м.н., профессор, зав. кафедрой эпидемиологии и современных технологий вакцинации, зав. лабораторией вакцинопрофилактики и иммунотерапии аллергических заболеваний</p></bio><email>poiuytyui@yandex.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff5"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Pechenik</surname><given-names>A. S.</given-names></name><name xml:lang="ru"><surname>Печеник</surname><given-names>А. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD (Medicine), Associate Professor, Doctor-Epidemiologist</p></bio><bio xml:lang="ru"><p>к.м.н., доцент, врач-эпидемиолог</p></bio><email>poiuytyui@yandex.ru</email><xref ref-type="aff" rid="aff6"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University)</institution></aff><aff><institution xml:lang="ru">ФГАОУ ВО Первый Московский государственный медицинский университет имени И.М. Сеченова Минздрава России (Сеченовский Университет)</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Izmerov Research Institute of Occupational Health</institution></aff><aff><institution xml:lang="ru">ФГБНУ Научно-исследовательский институт медицины труда имени академика Н.Ф. Измерова</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">National Research Center — Institute of Immunology of the Federal Medical-Biological Agency of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ ГНЦ Институт иммунологии ФМБА России</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">Central Research Institute of Epidemiology and Microbiology of Rospotrebnadzor</institution></aff><aff><institution xml:lang="ru">ФБУН Центральный НИИ эпидемиологии Роспотребнадзора</institution></aff></aff-alternatives><aff-alternatives id="aff5"><aff><institution xml:lang="en">I.I. Mechnikov Research Institute of Vaccines and Sera</institution></aff><aff><institution xml:lang="ru">ФГБНУ Научно-исследовательский институт вакцин и сывороток им. И.И. Мечникова</institution></aff></aff-alternatives><aff-alternatives id="aff6"><aff><institution xml:lang="en">N.E. Bauman Clinical City Hospital No. 29</institution></aff><aff><institution xml:lang="ru">ГБУЗ Городская клиническая больница № 29 им. Н.Э. Баумана Департамента здравоохранения города Москвы</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2023-12-25" publication-format="electronic"><day>25</day><month>12</month><year>2023</year></pub-date><pub-date date-type="pub" iso-8601-date="2024-02-28" publication-format="electronic"><day>28</day><month>02</month><year>2024</year></pub-date><volume>14</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>46</fpage><lpage>56</lpage><history><date date-type="received" iso-8601-date="2023-10-20"><day>20</day><month>10</month><year>2023</year></date><date date-type="accepted" iso-8601-date="2023-12-02"><day>02</day><month>12</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Konyuhov A.V., Kostinova A.M., Loktionova M.N., Kostinov M.P., Pechenik A.S.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Конюхов А.В., Костинова А.М., Локтионова М.Н., Костинов М.П., Печеник А.С.</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Konyuhov A.V., Kostinova A.M., Loktionova M.N., Kostinov M.P., Pechenik A.S.</copyright-holder><copyright-holder xml:lang="ru">Конюхов А.В., Костинова А.М., Локтионова М.Н., Костинов М.П., Печеник А.С.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://iimmun.ru/iimm/article/view/17085">https://iimmun.ru/iimm/article/view/17085</self-uri><abstract xml:lang="en"><p><italic>Relevance.</italic> Due to the large-scale vaccination campaigns against the SARS-CoV-2 coronavirus taking place worldwide, the question arises as to how vaccination may affect complete blood count (CBC) parameters in COVID-19 cases. Research objective: assess differences in complete blood count parameters in COVID-19 patients based on their vaccination status.</p> <p><italic>Materials and methods.</italic> A review of publications was conducted describing and presenting the complete blood count parameters in patients with verified COVID-19, by stratifying them into vaccinated and unvaccinated individuals against the SARS-CoV-2 virus-caused disease. Subsequently, a meta-analysis of the results for each CBC parameter was carried out by describing identified differences among patients with mild and moderate COVID-19, lacking comorbidities affecting CBC indicators.</p> <p><italic>Results.</italic> The analysis conducted allowed to determine that the complete blood count parameters do not exceed the reference range in most cases in both groups, excepting those of individuals with a severe disease course. The exception is the erythrocyte sedimentation rate (ESR) (42 [20.5–63.5] (∑n = 107, Me [Q<sub>1</sub>–Q<sub>3</sub>])) mm/h in unvaccinated individuals. Also, a slightly lower absolute lymphocyte count is observed in vaccinated individuals (0.95 [0.58–1.62] × 10<sup>9</sup>/L (∑n = 441, Me [Q<sub>1</sub>–Q<sub>3</sub>])). There is a twofold greater range of leukocyte quartile values in vaccinated individuals compared to unvaccinated individuals: 7.07 [4.07–12.31] × 10<sup>9</sup>/L (∑n = 555, Me [Q1–Q3]) vs 5.68 [4.02–8.34] × 10<sup>9</sup>/L (∑n = 2202, Me [Q<sub>1</sub>–Q<sub>3</sub>]). A similar pattern is observed for monocytes.</p> <p><italic>Conclusion.</italic> Conducting a meta-analysis of laboratory parameters in COVID-19 cases among vaccinated and unvaccinated individuals allows for determining the effectiveness of vaccination as well as identify the major trends in dynamic changes for essential blood parameters among unvaccinated and vaccinated individuals in general or with certain immunobiological preparations.</p></abstract><trans-abstract xml:lang="ru"><p><italic>Актуальность.</italic> В связи с проведением масштабных вакцинационных кампаний против коронавируса SARS-CoV-2 по всему миру возникает вопрос о том, как иммунизация может повлиять на результаты общего анализа крови при COVID-19. Цель исследования: изучить различия показателей общего анализа крови у пациентов с COVID-19-инфекцией в зависимости от статуса вакцинации.</p> <p><italic>Материалы и методы.</italic> Проведен обзор публикаций, где были описаны и представлены показатели общего анализа крови (ОАК) у пациентов с подтвержденным COVID-19 с разделением на вакцинированных и не вакцинированных от инфекционного заболевания, обусловленного вирусом SARS-CoV-2. Впоследствии был проведен анализ результатов зарубежных исследований по представленным основным показателям ОАК с описанием имеющихся различий среди пациентов с легким и среднетяжелым течением подтвержденной инфекции COVID-19. Для анализа результатов учитывались группы пациентов с отсутствием сопутствующих заболеваний, способных прямо или косвенно влиять на показатели ОАК.</p> <p><italic>Результаты.</italic> Проведенный анализ позволил определить, что показатели ОАК не выходят за пределы референсных значений в большинстве случаев в обеих группах, кроме показателей у лиц с тяжелым течением заболевания. Исключение составляет скорость оседания эритроцитов (СОЭ) (42 [20,5–63,5] (∑n = 107, Me [Q<sub>1</sub>–Q<sub>3</sub>])) мм/ч у невакцинированных лиц. Также несколько меньшее абсолютное значение лимфоцитов наблюдается у вакцинированных (0,95 [0,58–1,62] × 10<sup>9</sup>/л (∑n = 441, Me [Q<sub>1</sub>–Q<sub>3</sub>])). Отмечен вдвое больший разброс значений квартилей лейкоцитов у вакцинированных, чем у невакцинированных: 7,07 [4,07–12,31] × 10<sup>9</sup>/л (∑n = 555, Me [Q<sub>1</sub>–Q<sub>3</sub>]) против 5,68 [4,02–8,34] × 10<sup>9</sup>/л (∑n = 2202, Me [Q<sub>1</sub>–Q<sub>3</sub>]). Подобная ситуация наблюдается и в значениях моноцитов.</p> <p><italic>Заключение.</italic> Проведение метааналитических исследований показателей ОАК в случаях заболевания COVID-19 позволяет определить эффективность иммунизации, особенности иммунного ответа, а также выявить основные тенденции в динамике значений основных показателей крови среди невакцинированных и вакцинированных лиц в целом или определенными иммунобиологическими препаратами.</p></trans-abstract><kwd-group xml:lang="en"><kwd>COVID-19</kwd><kwd>full blood count</kwd><kwd>vaccination</kwd><kwd>lymphocytes</kwd><kwd>leucocytes</kwd><kwd>thrombocytes</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>COVID-19</kwd><kwd>общий анализ крови</kwd><kwd>вакцинация</kwd><kwd>лимфоциты</kwd><kwd>лейкоциты</kwd><kwd>тромбоциты</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Абдуллаев Р.Ю., Комиссарова О.Г. 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