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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">10.31631/2073-3046-2023-22-1-28-37</article-id><article-id custom-type="elpub" pub-id-type="custom">epidemiology-1742</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 СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Изучение гуморального иммунитета против коронавирусной инфекции COVID-19 у привитых вакцинами, доступными в Республике Беларусь (Спутник V (Gam-COVID-Vac), РФ и Sinopharm (BBIBP-CorV), КНР)</article-title><trans-title-group xml:lang="en"><trans-title>Study of Humoral Immunity against Coronavirus Infection COVID-19 in Vaccinated Individuals with Vaccines Available in the Republic of Belarus (Sputnik V (Gam-COVID-Vac), RF and Sinopharm (BBIBP-CorV), PRC)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3461-3246</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Корсак</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Korsak</surname><given-names>K. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Корсак Екатерина Сергеевна – ассистент кафедры инфекционных болезней.</p><p>246050, Гомель, ул. Ланге, 5</p><p>Тел.: +37533-6827805</p></bio><bio xml:lang="en"><p>Katsiaryna S. Korsak – Assistant Lecturer at the department of Infectious diseases of Gomel State Medical University.</p><p>5, Lanqe st, Gomel, 246050</p><p>Tel.: +37533-6827805</p></bio><email xlink:type="simple">Casia28@mail.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/0000-0003-0483-7329</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Стома</surname><given-names>И. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Stoma</surname><given-names>I. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Стома Игорь Олегович– доктор медицинских наук, доцент, ректор.</p><p>Гомель</p></bio><bio xml:lang="en"><p>Igor O. Stoma – Dr. Sci. (Med.), Associate Professor, Rector of Gomel State Medical University.</p><p>Gomel</p></bio><email xlink:type="simple">rektor@gsmu.by</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9435-6109</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Воропаев</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Voropaev</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Воропаев Евгений Викторович – кандидат медицинских наук, доцент, проректор по научной работе.</p><p>Гомель</p></bio><bio xml:lang="en"><p>Evgenii V. Voropaev – Cand. Sci. (Med.), Associate Professor, Vice-rector for scientific work of Gomel State Medical University.</p><p>Gomel</p></bio><email xlink:type="simple">evoropaev@mail.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/0000-0002-1931-4224</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Осипкина</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Osipkina</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Осипкина Ольга Викторовна – заведующая НИЛ.</p><p>Гомель</p></bio><bio xml:lang="en"><p>Olga V. Osipkina – Head of the Research Laboratory of the Gomel State Medical University.</p><p>Gomel</p></bio><email xlink:type="simple">olga.osipkina@mail.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/0000-0001-9148-487X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ковалев</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kovalev</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ковалев Алексей Алексеевич – инженер-программист отдела науки и научно-методической информации.</p><p>Гомель</p></bio><bio xml:lang="en"><p>Aleksey A. Kovalev – Programming engineer of the department of science and scientific-methodical information, Gomel State Medical University.</p><p>Gomel</p></bio><email xlink:type="simple">kovalev.data.analysis.gsmu@yandex.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Гомельский государственный медицинский университет</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Gomel State Medical University</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>05</day><month>03</month><year>2023</year></pub-date><volume>22</volume><issue>1</issue><fpage>28</fpage><lpage>37</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Корсак Е.С., Стома И.О., Воропаев Е.В., Осипкина О.В., Ковалев А.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Корсак Е.С., Стома И.О., Воропаев Е.В., Осипкина О.В., Ковалев А.А.</copyright-holder><copyright-holder xml:lang="en">Korsak K.S., Stoma I.O., Voropaev E.V., Osipkina O.V., Kovalev A.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/1742">https://www.epidemvac.ru/jour/article/view/1742</self-uri><abstract><p>Актуальность. Во многих странах мира ведется разработка эффективных вакцин против SARS-CoV-2. Мерой эффективности вакцинации традиционно является выработка антител. Немаловажными факторами в принятии решения в пользу той или иной вакцины являются также частота и интенсивность поствакцинальных реакций. Цель. Проанализировать иммуногенность и реактогенность вакцин Спутник V (Gam-COVID-Vac), РФ и Sinopharm (BBIBP-CorV), КНР. Материалы и методы. В качестве биологического материала использовали плазму крови участников исследования. Взятие крови проводили 3 раза: непосредственно перед прививкой, на 42-й день и через 6 месяцев после вакцинации. Поствакцинальный иммунитет оценивали по результатам иммуноферментного анализа, а также иммуноферментного дифференциального определения иммуноглобулинов класса G к S- и N-белкам SARS-CoV-2. Для оценки частоты и интенсивности поствакцинальных реакций участники исследования проходили анкетирование. Результаты и обсуждение. Через 42 дня после вакцинации отмечался рост уровня антител. Количественный показатель IgG у вакцины Спутник V был значительно выше, что было отмечено и через 6 месяцев после первой дозы как среди лиц, ранее инфицированных SARS-CoV-2, так и среди тех, кто не болел COVID-19. Частота поствакцинальных реакций в данном исследовании составила 45%. Все отмеченные реакции были лёгкой или средней степени выраженности. Наиболее частыми из них были: болезненность и покраснение в месте инъекции, повышение температуры тела, а также сочетание нескольких реакций. Повышение температуры тела после вакцинации чаще встречается среди вакцинированных Спутник V. Выводы. Вакцина Спутник V по сравнению Sinopharm имеет более высокие показатели иммуногенности. При сравнении групп, привитых вакцинами Спутник V и Sinopharm, по уровню IgG к S- и N-белкам статистически значимое различие выявлено к S-белку: в группе вакцинированных Спутник V уровень IgG к S-белку значимо выше, чем в группе вакцинированных Sinopharm (р = 0,0000196). Поствакцинальные реакции отмечались в обеих группах вакцинированных. Однако значимые статистические различия выявлены в отношении повышения температуры тела в группе привитых Спутником V эта реакция встречалась чаще.</p></abstract><trans-abstract xml:lang="en"><p>Relevance. Many countries around the world are developing effective vaccines against SARS-CoV-2. The measure of the effectiveness of the vaccination process has traditionally been antibody production. The frequency and intensity of adverse reactions is also an important factor in making a decision regarding a vaccine. This study presents the results of the evaluation of the formation of humoral immunity and the occurrence of reactions in response to the administration of Sputnik V (Gam-COVID-Vac), RF, and Sinopharm (BBIBP-CorV), PRC. Aim. Analyze immunogenicity and reactogenicity of COVID-19 vaccines used in the Republic of Belarus (Sputnik V and Sinopharm). Materials and methods. Evaluation of postvaccination immune response by enzyme immunoassay and differential enzyme immunoassay for class G immunoglobulins to S- and N-proteins SARS-CoV-2. Blood plasma of the study participants was used as biological material. Blood sampling was performed 3 times: immediately before the first vaccine dose, on day 42, and 6 months after the first vaccine dose. To evaluate the frequency and intensity of postvaccination reactions, study participants were questioned. Results. At 42 days after administration of both vaccines, antibody levels are rising, with a significantly higher quantitative IgG count for the Sputnik V vaccine. This trend is also observed 6 months after the first dose of both vaccines, both among those previously infected with SARS-CoV-2 and those without a history of COVID-19. The comparison of Sputnik V and Sinopharm vaccine groups in terms of IgG (BAU/ml) levels to S- and N-proteins revealed a statistically significant difference in IgG levels to S-protein: the Sputnik V vaccine group had significantly higher IgG levels to S-protein than the Sinopharm vaccine group (p = 0.0000196). The incidence of adverse reactions in this study was 45%. All reactions noted were mild to moderate in severity. The most common were soreness and redness at the injection site, elevated body temperature, and a combination of several reactions. The increased body temperature after vaccination was more common among those vaccinated with the Sputnik V vaccine. Conclusion. Compared to Sinopharm, Sputnik V vaccine produces higher antibody level. Adverse reactions were observed in both vaccinated groups. However, significant statistical differences were found with regard to fever in the Sputnik V vaccine group, which occurred more frequently.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>вакцинация</kwd><kwd>Спутник V (Gam-COVID-Vac)</kwd><kwd>Sinopharm (BBIBP-CorV)</kwd><kwd>COVID-19</kwd><kwd>SARS-CoV-2</kwd><kwd>S-белок</kwd><kwd>N-белок</kwd><kwd>иммунологическая эффективность</kwd><kwd>поствакцинальные реакции</kwd><kwd>«гибридный иммунитет»</kwd></kwd-group><kwd-group xml:lang="en"><kwd>vaccination</kwd><kwd>immune response</kwd><kwd>adverse reactions</kwd><kwd>Sputnik V (Gam-COVID-Vac)</kwd><kwd>Sinopharm (BBIBP-CorV)</kwd><kwd>COVID-19</kwd><kwd>SARS-CoV-2</kwd><kwd>S-protein</kwd><kwd>N-protein</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">WHO Coronavirus (COVID-19) dashboard [Internet]. World Health Organization (WHO). Доступно на: https://covid19.who.int/ Ссылка активна на 5 апреля 2022.</mixed-citation><mixed-citation xml:lang="en">WHO Coronavirus (COVID-19) dashboard [Internet]. World Health Organization (WHO). Доступно на: https://covid19.who.int/ Ссылка активна на 5 апреля 2022.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Wong R.S.Y. COVID-19 vaccines and herd immunity: Perspectives, challenges and prospects. The Malaysian Journal of Pathology. 2021. Vol. 43, N2. P. 203–217.</mixed-citation><mixed-citation xml:lang="en">Wong R.S.Y. COVID-19 vaccines and herd immunity: Perspectives, challenges and prospects. The Malaysian Journal of Pathology. 2021. Vol. 43, N2. P. 203–217.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Argote P., Barham E., Zukerman Daly S., et al. The shot, the message, and the messenger: COVID-19 vaccine acceptance in Latin America // npj Vaccines. 2021. Vol. 6, P. 118. doi: 10.1038/s41541-021-00380-x</mixed-citation><mixed-citation xml:lang="en">Argote P., Barham E., Zukerman Daly S., et al. The shot, the message, and the messenger: COVID-19 vaccine acceptance in Latin America // npj Vaccines. 2021. Vol. 6, P. 118. doi: 10.1038/s41541-021-00380-x</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Strizovaa Z., Smetanovaa J., Bartunkovaa J., et al. Principles and Challenges in anti-COVID-19 Vaccine Development. International Archives of Allergy and Immunology. 2021. Vol. 1, P. 1–11.</mixed-citation><mixed-citation xml:lang="en">Strizovaa Z., Smetanovaa J., Bartunkovaa J., et al. Principles and Challenges in anti-COVID-19 Vaccine Development. International Archives of Allergy and Immunology. 2021. Vol. 1, P. 1–11.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Khan M., Adil S.F., Alkhathlan H.Z., et al. COVID-19: A Global Challenge with Old History, Epidemiology and Progress So Far // Molecules. 2020. Vol. 26, N1. P. 39.</mixed-citation><mixed-citation xml:lang="en">Khan M., Adil S.F., Alkhathlan H.Z., et al. COVID-19: A Global Challenge with Old History, Epidemiology and Progress So Far // Molecules. 2020. Vol. 26, N1. P. 39.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Jackson S.E., Paul E., Brown J., et al. Negative vaccine attitudes and intentions to vaccinate against Covid-19 in relation to smoking status: a population survey of UK adults // Nicotine &amp; Tobacco Research. 2021. Vol. 23, N9. P. 1623–1628.</mixed-citation><mixed-citation xml:lang="en">Jackson S.E., Paul E., Brown J., et al. Negative vaccine attitudes and intentions to vaccinate against Covid-19 in relation to smoking status: a population survey of UK adults // Nicotine &amp; Tobacco Research. 2021. Vol. 23, N9. P. 1623–1628.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Basta N.E., Moodie E.M.M. on behalf of the VIPER (Vaccines, Infectious disease Prevention, and Epidemiology Research) Group COVID-19 Vaccine Development and Approvals Tracker Team. COVID-19 Vaccine Development and Approvals Tracker. Funding provided by the McGill University Interdisciplinary Initiative in Infection and Immunity (MI4) (2020). https://covid19.trackvaccines.org/</mixed-citation><mixed-citation xml:lang="en">Basta N.E., Moodie E.M.M. on behalf of the VIPER (Vaccines, Infectious disease Prevention, and Epidemiology Research) Group COVID-19 Vaccine Development and Approvals Tracker Team. COVID-19 Vaccine Development and Approvals Tracker. Funding provided by the McGill University Interdisciplinary Initiative in Infection and Immunity (MI4) (2020). https://covid19.trackvaccines.org/</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Our World In Data, University of Oxford, UK https://ourworldindata.org/coronavirus/country/belarus</mixed-citation><mixed-citation xml:lang="en">Our World In Data, University of Oxford, UK https://ourworldindata.org/coronavirus/country/belarus</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Loo K.Y., Letchumanan V., Ser H.L., et al. COVID-19: Insights into Potential Vaccines // Microorganisms. 2021. Vol. 9, N3. P. 605. doi: 10.3390/microorganisms9030605</mixed-citation><mixed-citation xml:lang="en">Loo K.Y., Letchumanan V., Ser H.L., et al. COVID-19: Insights into Potential Vaccines // Microorganisms. 2021. Vol. 9, N3. P. 605. doi: 10.3390/microorganisms9030605</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Mao Q., Xu M., He Q., et al. COVID-19 vaccines: progress and understanding on quality control and evaluation // Signal Transduction and Targeted Therapy. 2021. N6. P. 199.</mixed-citation><mixed-citation xml:lang="en">Mao Q., Xu M., He Q., et al. COVID-19 vaccines: progress and understanding on quality control and evaluation // Signal Transduction and Targeted Therapy. 2021. N6. P. 199.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Kisby T., Yilmazer A., Kostarelos K. Reasons for success and lessons learnt from nanoscale vaccines against COVID-19. Nature Nanotechnology. 2021. Vol. 16, N8. P. 843–850.</mixed-citation><mixed-citation xml:lang="en">Kisby T., Yilmazer A., Kostarelos K. Reasons for success and lessons learnt from nanoscale vaccines against COVID-19. Nature Nanotechnology. 2021. Vol. 16, N8. P. 843–850.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Logunov D.Y., Dolzhikova I.V., Shcheblyakov D.V., et al. Safety and efficacy of an rAd26 and rAd5 vector-based heterologous prime-boost COVID-19 vaccine: an interim analysis of a randomised controlled phase 3 trial in Russia. The Lancet. 2021. Vol. 397, N10275. P. 671–681.</mixed-citation><mixed-citation xml:lang="en">Logunov D.Y., Dolzhikova I.V., Shcheblyakov D.V., et al. Safety and efficacy of an rAd26 and rAd5 vector-based heterologous prime-boost COVID-19 vaccine: an interim analysis of a randomised controlled phase 3 trial in Russia. The Lancet. 2021. Vol. 397, N10275. P. 671–681.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Zahid M.N. Unfolding the Mild to Moderate Short-Term Side Effects of Four COVID-19 Vaccines Used in Bahrain: A Cross-Sectional Study // Vaccines (Basel). 2021. Vol. 9, N11. P. 1369.</mixed-citation><mixed-citation xml:lang="en">Zahid M.N. Unfolding the Mild to Moderate Short-Term Side Effects of Four COVID-19 Vaccines Used in Bahrain: A Cross-Sectional Study // Vaccines (Basel). 2021. Vol. 9, N11. P. 1369.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Houshmand B., Keyhan S.O., Fallahi H.R., et al. Vaccine-associated complications: a comparative multicenter evaluation among dental practitioners and dental students—which candidate vaccine is more safe in SARS COV II, Gam-COVID-Vac (Sputnik V), ChAdOx1 nCoV-19 (AstraZeneca), BBV152 (Covaxin), or BBIBP-CorV(Sinopharm)? // Maxillofacial Plastic and Reconstructive Surgery. 2022. Vol. 44, N1. P. 3.</mixed-citation><mixed-citation xml:lang="en">Houshmand B., Keyhan S.O., Fallahi H.R., et al. Vaccine-associated complications: a comparative multicenter evaluation among dental practitioners and dental students—which candidate vaccine is more safe in SARS COV II, Gam-COVID-Vac (Sputnik V), ChAdOx1 nCoV-19 (AstraZeneca), BBV152 (Covaxin), or BBIBP-CorV(Sinopharm)? // Maxillofacial Plastic and Reconstructive Surgery. 2022. Vol. 44, N1. P. 3.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Pourani M.R., Shahidi Dadras M., Salari M., et al. Cutaneous adverse events related to COVID-19 vaccines: A cross-sectional questionnaire-based study of 867 patients // Dermatologic Therapy. 2022. Vol. 35, N2. P. e15223.</mixed-citation><mixed-citation xml:lang="en">Pourani M.R., Shahidi Dadras M., Salari M., et al. Cutaneous adverse events related to COVID-19 vaccines: A cross-sectional questionnaire-based study of 867 patients // Dermatologic Therapy. 2022. Vol. 35, N2. P. e15223.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Karimi N., Boostani R., Fatehi F., et al. Guillain-Barre Syndrome and COVID-19 Vaccine: A Report of Nine Patients. Basic Clinical Neuroscience. 2021. Vol. 12, N5. P. 703–710.</mixed-citation><mixed-citation xml:lang="en">Karimi N., Boostani R., Fatehi F., et al. Guillain-Barre Syndrome and COVID-19 Vaccine: A Report of Nine Patients. Basic Clinical Neuroscience. 2021. Vol. 12, N5. P. 703–710.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Petrović V., Vuković V., Marković M., et al. Early Effectiveness of Four SARS-CoV-2 Vaccines in Preventing COVID-19 among Adults Aged ≥60 Years in Vojvodina, Serbia. Vaccines. 2022. Vol. 10, N3. P. 389.</mixed-citation><mixed-citation xml:lang="en">Petrović V., Vuković V., Marković M., et al. Early Effectiveness of Four SARS-CoV-2 Vaccines in Preventing COVID-19 among Adults Aged ≥60 Years in Vojvodina, Serbia. Vaccines. 2022. Vol. 10, N3. P. 389.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Dashdorj N.J., Wirz O.F., Röltgen K., et al. Direct comparison of antibody responses to four SARS-CoV-2 vaccines in Mongolia // Cell Host &amp; Microbe. 2021. Vol. 29, N12. P. 1738–1743.e4.</mixed-citation><mixed-citation xml:lang="en">Dashdorj N.J., Wirz O.F., Röltgen K., et al. Direct comparison of antibody responses to four SARS-CoV-2 vaccines in Mongolia // Cell Host &amp; Microbe. 2021. Vol. 29, N12. P. 1738–1743.e4.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Vokó Z., Kiss Z., Surján G., et al. Nationwide effectiveness of five SARS-CoV-2 vaccines in Hungary – the HUN-VE study. Clinical Microbiology and Infection. 2021. Vol. S1198-743X, N21. P. 00639.</mixed-citation><mixed-citation xml:lang="en">Vokó Z., Kiss Z., Surján G., et al. Nationwide effectiveness of five SARS-CoV-2 vaccines in Hungary – the HUN-VE study. Clinical Microbiology and Infection. 2021. Vol. S1198-743X, N21. P. 00639.</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>
