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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">biopreparat</journal-id><journal-title-group><journal-title xml:lang="ru">БИОпрепараты. Профилактика, диагностика, лечение</journal-title><trans-title-group xml:lang="en"><trans-title>Biological Products. Prevention, Diagnosis, Treatment</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2221-996X</issn><issn pub-type="epub">2619-1156</issn><publisher><publisher-name>Scientific Centre for Expert Evaluation of Medicinal Products</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30895/2221-996X-2020-20-4-216-227</article-id><article-id custom-type="elpub" pub-id-type="custom">biopreparat-303</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>ОБЗОРЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>REVIEWS</subject></subj-group></article-categories><title-group><article-title>Анализ перспективных направлений создания вакцин против COVID-19</article-title><trans-title-group xml:lang="en"><trans-title>Analysis of Promising Approaches to COVID-19 Vaccine Development</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0135-7258</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Онищенко</surname><given-names>Г. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Onishchenko</surname><given-names>G. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Геннадий Григорьевич Онищенко, д-р мед. наук, проф., акад. РАН,</p><p>Трубецкая ул., д. 8, стр. 2, Москва, 119991</p></bio><bio xml:lang="en"><p>Gennadiy G. Onishchenko, Dr. Sci. (Med.), Professor, Academician of RAS.,</p><p>8/2 Trubetskaya St., Moscow 119991</p></bio><email xlink:type="simple">ecolog_n_n@mma.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/0000-0002-1817-0126</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сизикова</surname><given-names>Т. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Sizikova</surname><given-names>T. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сизикова Татьяна Евгеньевна, канд. биол. наук,</p><p>ул. Октябрьская, д. 11, Сергиев Посад-6, Московская область, 141306</p></bio><bio xml:lang="en"><p>Tatyana E. Sizikova, Cand. Sci. (Biol.).,</p><p>11 Oktyabr'skaya St., Sergiev Posad-6, Moscow Oblast 141306</p></bio><email xlink:type="simple">48cnii@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6552-4599</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лебедев</surname><given-names>В. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Lebedev</surname><given-names>V. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лебедев Виталий Николаевич, д-р биол. наук, проф.,</p><p>ул. Октябрьская, д. 11, Сергиев Посад-6, Московская область, 141306</p></bio><bio xml:lang="en"><p>Vitaliy N. Lebedev, Dr. Sci. (Biol.), Professor.</p><p>11 Oktyabr'skaya St., Sergiev Posad-6, Moscow Oblast 141306, Russian Federation</p></bio><email xlink:type="simple">48cnii@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6742-3919</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Борисевич</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Borisevich</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Борисевич Сергей Владимирович, д-р биол. наук, проф., член-корр. РАН,</p><p>ул. Октябрьская, д. 11, Сергиев Посад-6, Московская область, 141306</p></bio><bio xml:lang="en"><p>Sergey V. Borisevich, Dr. Sci. (Biol.), Professor, Corr. Member of RAS.,</p><p>11 Oktyabr'skaya St., Sergiev Posad-6, Moscow Oblast 141306</p></bio><email xlink:type="simple">48cnii@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное автономное образовательное учреждение высшего образования «Первый Московский государственный медицинский университет им. И. М. Сеченова» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>I. M. Sechenov First Moscow State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное учреждение «48 Центральный научно-исследовательский институт» Министерства обороны Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>48 Central Scientific Research Institute</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>17</day><month>11</month><year>2020</year></pub-date><volume>20</volume><issue>4</issue><fpage>216</fpage><lpage>227</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Онищенко Г.Г., Сизикова Т.Е., Лебедев В.Н., Борисевич С.В., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Онищенко Г.Г., Сизикова Т.Е., Лебедев В.Н., Борисевич С.В.</copyright-holder><copyright-holder xml:lang="en">Onishchenko G.G., Sizikova T.E., Lebedev V.N., Borisevich S.V.</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.biopreparations.ru/jour/article/view/303">https://www.biopreparations.ru/jour/article/view/303</self-uri><abstract><p>На начало ноября 2020 г. в мире зарегистрировано 50 млн случаев COVID-19. Для формирования коллективного иммунитета, который будет препятствовать возникновению повторных вспышек заболевания, этот показатель является явно недостаточным. Карантинные мероприятия способны лишь в какой-то мере ограничить распространение заболевания, поэтому актуальным является вопрос о создании специфических средств профилактики в отношении данной нозологической формы, направленных на искусственное формирование коллективного иммунитета против COVID-19. В основе коллективного иммунитета лежит непрямая защита человеческой популяции в целом при иммунизации определенной его части. Вакцинация является наиболее действенным способом предотвращения развития эпидемической вспышки. Цель работы — анализ перспективных направлений создания вакцин против новой коронавирусной инфекции COVID-19. Представлены результаты обобщения информации о разработке и клинических исследованиях вакцин против COVID-19 в различных странах, проведен анализ достоинств и недостатков различных платформ для создания вакцин (аттенуированные, инактивированные, субъединичные, ДНК- и РНК-вакцины, векторные рекомбинантные вакцины). Представлен возможный дизайн вакцин нового поколения. Сделан вывод о том, что вакцины против COVID-19 могут быть созданы как для иммунизации групп высокого риска, так и для проведения массовой иммунизации. Приоритетное положение при решении второй из указанных задач занимает создание векторных рекомбинантных вакцин на основе аденовируса человека или обезьян, массовое производство которых уже анонсировано. </p></abstract><trans-abstract xml:lang="en"><p>The number of confirmed COVID-19 cases worldwide amounted to 50 million at the beginning of November 2020. This is clearly not enough for the formation of herd immunity, which will prevent repeated outbreaks of the disease. Quarantine measures can only curb the spread of the disease to some extent, therefore specific preventive measures are needed to create collective immunity to COVID-19.The underlying principle of collective immunity is indirect protection of the whole of the population by immunising a certain part of it. Vaccination is the most effective approach to prevention of epidemic outbreaks. The aim of the study was to analyse promising approaches to the development of vaccines against novel coronavirus COVID-19 infection. The paper summarises data on development studies and clinical trials of COVID-19 vaccines conducted in different countries. It analyses the pros and cons of different platforms for vaccine development (attenuated vaccines, inactivated vaccines, subunit vaccines, DNA and RNA vaccines, recombinant vector vaccines). The paper presents a potential design of novel vaccines. It was concluded that COVID-19 vaccines might be developed both for immunising high-risk groups and for mass immunisation. An optimal solution for the second task would be to develop human or monkey adenovirus vector-based vaccines whose mass production has already been unveiled.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>COVID-19</kwd><kwd>вирус SARS-CoV-2</kwd><kwd>аттенуированные вакцины</kwd><kwd>инактивированные вакцины</kwd><kwd>субъединичные вакцины</kwd><kwd>ДНК- вакцины</kwd><kwd>РНК-вакцины</kwd><kwd>векторные рекомбинантные вакцины</kwd><kwd>клинические исследования</kwd><kwd>группы риска</kwd><kwd>коллективный иммунитет</kwd></kwd-group><kwd-group xml:lang="en"><kwd>COVID-19</kwd><kwd>SARS-CoV-2 virus</kwd><kwd>attenuated vaccines</kwd><kwd>inactivated vaccines</kwd><kwd>subunit vaccines</kwd><kwd>DNA vaccines</kwd><kwd>RNA vaccines</kwd><kwd>recombinant vector vaccines</kwd><kwd>clinical trials</kwd><kwd>herd immunity</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">Hui DS, Azhar EI, Madani TA, Ntoumi F, Kock R, Dar O, et al. The continuing 2019-nCoV epidemic threat of novel coronaviruses to global health — The latest 2019 novel coronavirus outbreak in Wuhan, China. Int J Infect Dis. 2020;91:264–6. https://doi.org/10.1016/j.ijid.2020.01.009</mixed-citation><mixed-citation xml:lang="en">Hui DS, Azhar EI, Madani TA, Ntoumi F, Kock R, Dar O, et al. The continuing 2019-nCoV epidemic threat of novel coronaviruses to global health — The latest 2019 novel coronavirus outbreak in Wuhan, China. Int J Infect Dis. 2020;91:264–6. https://doi.org/10.1016/j.ijid.2020.01.009</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Львов ДК, Альховский СВ, Колобухина ЛВ, Бурцева ЕИ. Этиология эпидемической вспышки COVID-19 в г. Ухань (провинция Хубэй, Китайская Народная Республика), ассоциированной с вирусом 2019-nCoV (Nidovirales, Coronaviridae, Coronavirinae, Betacoronavirus, подрод Sarbecovirus): уроки эпидемии SARS-CoV. Вопросы вирусологии. 2020;65(1):6–15. https://doi.org/10.36233/0507-4088-2020-65-1-6-15</mixed-citation><mixed-citation xml:lang="en">Lvov DK, Alkhovsky SV, Kolobukhina LV, Burtseva EI. Etiology of epidemic outbreaks COVID-19 in Wuhan, Hubei province, Chinese People Republic associated with 2019-nCoV (Nidovirales, Coronaviridae, Coronavirinae, Betacoronavirus, Subgenus Sarbecovirus): lessons of SARS-CoV outbreak. Voprosy virusologii = Problems of Virology, Russian Journal. 2020;65(1):6–15 (In Russ.) https://doi.org/10.36233/0507-4088-2020-65-1-6-15</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Fine P, Eames K, Heymann DL. «Herd immunity»: a rough guide. Clin Infect Dis. 2011;52(7):911–6. https://doi.org/10.1093/cid/cir007</mixed-citation><mixed-citation xml:lang="en">Fine P, Eames K, Heymann DL. «Herd immunity»: a rough guide. Clin Infect Dis. 2011;52(7):911–6. https://doi.org/10.1093/cid/cir007</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Holme P, Masuda N. The basic reproductive number as a predictor for epidemic outbreaks in temporal networks. Plos ONE. 2015;10(3):e0120567. https://doi.org/10.1371/journal.pone.0120567</mixed-citation><mixed-citation xml:lang="en">Holme P, Masuda N. The basic reproductive number as a predictor for epidemic outbreaks in temporal networks. Plos ONE. 2015;10(3):e0120567. https://doi.org/10.1371/journal.pone.0120567</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Thanh Le T, Andreadakis Z, Kumar A, Gómez Román R, Tollefsen S, Saville M, Mayhew S. The COVID-19 vaccine development landscape. Nat Rev Drug Discov. 2020:19(5):305–6. https://doi.org/10.1038/d41573-020-00073-5</mixed-citation><mixed-citation xml:lang="en">Thanh Le T, Andreadakis Z, Kumar A, Gómez Román R, Tollefsen S, Saville M, Mayhew S. The COVID-19 vaccine development landscape. Nat Rev Drug Discov. 2020:19(5):305–6. https://doi.org/10.1038/d41573-020- 00073-5</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Feldmann H, Jones S, Klenk HD, Schnittler HJ. Ebola virus: from discovery to vaccine. Nat Rev Immunol. 2003;3(8):677–85. https://doi.org/10.1038/nri1154</mixed-citation><mixed-citation xml:lang="en">Feldmann H, Jones S, Klenk HD, Schnittler HJ. Ebola virus: from discovery to vaccine. Nat Rev Immunol. 2003;3(8):677– 85. https://doi.org/10.1038/nri1154</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Decaro N, Lorusso A. Novel human coronavirus (SARSCoV-2): A lesson from animal coronaviruses. Vet Microbiol. 2020;244:108693. https://doi.org/10.1016/j.vetmic.2020.108693</mixed-citation><mixed-citation xml:lang="en">Decaro N, Lorusso A. Novel human coronavirus (SARSCoV-2): A lesson from animal coronaviruses. Vet Microbiol. 2020;244:108693. https://doi.org/10.1016/j.vetmic.2020.108693</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Yip MS, Leung NH, Cheung CY, Li PH, Lee HH, Daëron M, et al. Antibody-dependent infection of human macrophages by severe acute respiratory syndrome coronavirus. Virol J. 2014;11:82. https://doi.org/10.1186/1743-422X-11-82</mixed-citation><mixed-citation xml:lang="en">Yip MS, Leung NH, Cheung CY, Li PH, Lee HH, Daëron M, et al. Antibody-dependent infection of human macrophages by severe acute respiratory syndrome coronavirus. Virol J. 2014;11:82. https://doi.org/10.1186/1743-422X-11-82</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Jaume M, Yip MS, Cheung CY, Leung HL, Li PH, Kien F, et al. Anti-severe acute respiratory syndrome coronavirus spike antibodies trigger infection of human immune cells via a pH- and cysteine protease-independent FcγR pathway. J Virol. 2011;85(20):10582–97. https://doi.org/10.1128/JVI.00671-11</mixed-citation><mixed-citation xml:lang="en">Jaume M, Yip MS, Cheung CY, Leung HL, Li PH, Kien F, et al. Anti-severe acute respiratory syndrome coronavirus spike antibodies trigger infection of human immune cells via a pH- and cysteine protease-independent FcγR pathway. J Virol. 2011;85(20):10582–97. https://doi.org/10.1128/JVI.00671-11</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Cai Y, Zhang J, Xiao T, Peng H, Sterling SM, Walsh RM Jr, et al. Distinct conformational states of SARS-CoV-2 spike protein. Science. 2020;369(6511):1586–92. https://doi.org/10.1126/science.abd4251</mixed-citation><mixed-citation xml:lang="en">Cai Y, Zhang J, Xiao T, Peng H, Sterling SM, Walsh RM Jr, et al. Distinct conformational states of SARS-CoV-2 spike protein. Science. 2020;369(6511):1586–92. https://doi.org/10.1126/science.abd4251</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Sohag AAM, Hannan MA, Rahman S, Hossain M, Hasan M, Khan MK, et al. Revisiting potential druggable targets against SARS-CoV-2 and repurposing therapeutics under preclinical study and clinical trials: a comprehensive review. Drug Dev Res. 2020. https://doi.org/10.1002/ddr.21709</mixed-citation><mixed-citation xml:lang="en">Sohag AAM, Hannan MA, Rahman S, Hossain M, Hasan M, Khan MK, et al. Revisiting potential druggable targets against SARS-CoV-2 and repurposing therapeutics under preclinical study and clinical trials: a comprehensive review. Drug Dev Res. 2020. https://doi.org/10.1002/ddr.21709</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Logunov DY, Dolzhikova IV, Zubcova OV, Tukhvatullin AI, Shcheblyakov DV, Dzharullaeva AS, et al. Safety and immunogenicity of an rAd26 and rAd5 vector-based heterologous prime-boost COVID-19 vaccine in two formulations two open non-randomized phase 1/2 studies from Russia. Lancet. 2020;396(10255):887–97. https://doi.org/10.1016/S0140-6736(20)31866-3</mixed-citation><mixed-citation xml:lang="en">Logunov DY, Dolzhikova IV, Zubcova OV, Tukhvatullin AI, Shcheblyakov DV, Dzharullaeva AS, et al. Safety and immunogenicity of an rAd26 and rAd5 vector-based heterologous prime-boost COVID-19 vaccine in two formulations two open non-randomized phase 1/2 studies from Russia. Lancet. 2020;396(10255):887–97. https://doi.org/10.1016/S0140-6736(20)31866-3</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Zhu FC, Guan XH, Li YH, Huang JY, Jiang T, Hou LH, et al. Immunogenicity and safety of a recombinant adenovirus type-5-vectored COVID-19 vaccine in healthy adults aged 18 years or older: a randomised, double-blind, placebocontrolled, phase 2 trial. Lancet. 2020;396(10249):479–88. https://doi.org/10.1016/s0140-6736(20)31605-6</mixed-citation><mixed-citation xml:lang="en">Zhu FC, Guan XH, Li YH, Huang JY, Jiang T, Hou LH, et al. Immunogenicity and safety of a recombinant adenovirus type-5-vectored COVID-19 vaccine in healthy adults aged 18 years or older: a randomised, double-blind, placebocontrolled, phase 2 trial. Lancet. 2020;396(10249):479–88. https://doi.org/10.1016/s0140-6736(20)31605-6</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Yan-Jun Zhang, Gang Zeng, Hong-Xing Pan, Chang-Gui Li, Biao Kan, Ya-Ling Hu, et al. Immunogenicity and safety of a SARS-CoV-2 inactivated vaccine in healthy adults aged 18–59 years: report of the randomized, double-blind, and placebo-controlled phase 2 clinical trial. medRxiv. 2020. https://doi.org/10.1101/2020.07.31.20161216</mixed-citation><mixed-citation xml:lang="en">Yan-Jun Zhang, Gang Zeng, Hong-Xing Pan, Chang-Gui Li, Biao Kan, Ya-Ling Hu, et al. Immunogenicity and safety of a SARS-CoV-2 inactivated vaccine in healthy adults aged 18–59 years: report of the randomized, double-blind, and placebo-controlled phase 2 clinical trial. medRxiv. 2020. https://doi.org/10.1101/2020.07.31.20161216</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Xia S, Duan K, Zhang Y, Zhao D, Zhang H, Xie Z, et al. Effect of an inactivated vaccine against SARS-CoV-2 on safety and immunogenicity outcomes: interim analysis of 2 randomized clinical trials. JAMA. 2020;324(10):951–60. https://doi.org/10.1001/jama.2020.15543</mixed-citation><mixed-citation xml:lang="en">Xia S, Duan K, Zhang Y, Zhao D, Zhang H, Xie Z, et al. Effect of an inactivated vaccine against SARS-CoV-2 on safety and immunogenicity outcomes: interim analysis of 2 randomized clinical trials. JAMA. 2020;324(10):951–60. https://doi.org/10.1001/jama.2020.15543</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Zhu FC, Guan XH, Li YH, Huang JY, Jiang T, Hou LH, et al. Immunogenicity and safety of a recombinant adenovirus type-5-vectored COVID-19 vaccine in healthy adults aged 18 years or older: a randomised, double-blind, placebocontrolled, phase 2 trial. Lancet. 2020;396(10249):479–88. https://doi.org/10.1016/S0140-6736(20)31605-6</mixed-citation><mixed-citation xml:lang="en">Zhu FC, Guan XH, Li YH, Huang JY, Jiang T, Hou LH, et al. Immunogenicity and safety of a recombinant adenovirus type-5-vectored COVID-19 vaccine in healthy adults aged 18 years or older: a randomised, double-blind, placebocontrolled, phase 2 trial. Lancet. 2020;396(10249):479–88. https://doi.org/10.1016/S0140-6736(20)31605-6</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Jackson LA, Anderson EJ, Rouphael NG, Roberts PC, Makhene M, Coler RN, et al. An mRNA vaccine against SARS-CoV-2 — preliminary report. N Engl J Med. 2020;NEJMoa2022483. https://doi.org/10.1056/NEJMoa2022483</mixed-citation><mixed-citation xml:lang="en">Jackson LA, Anderson EJ, Rouphael NG, Roberts PC, Makhene M, Coler RN, et al. An mRNA vaccine against SARS-CoV-2 — preliminary report. N Engl J Med. 2020;NEJMoa2022483. https://doi.org/10.1056/NEJMoa2022483</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Mulligan MJ, Lyke KE, Kitchin N, Absalon J, Gurtman A, Lockhart S, et al. Phase 1/2 study to describe the safety and immunogenicity of a COVID-19 RNA vaccine candidate (BNT162b1) in adults 18 to 55 years of age: interim report. medRxiv. 2020. https://doi.org/10.1101/2020.06.30.20142570</mixed-citation><mixed-citation xml:lang="en">Mulligan MJ, Lyke KE, Kitchin N, Absalon J, Gurtman A, Lockhart S, et al. Phase 1/2 study to describe the safety and immunogenicity of a COVID-19 RNA vaccine candidate (BNT162b1) in adults 18 to 55 years of age: interim report. medRxiv. 2020. https://doi.org/10.1101/2020.06.30.20142570</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>
