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Single-shot Ad26 vaccine protects against SARS-CoV-2 in rhesus macaques

Author(s)
Mercado, Noe B.; Zahn, Roland; Wegmann, Frank; Loos, Carolin; Chandrashekar, Abishek; Yu, Jingyou; Liu, Jinyan; Peter, Lauren; McMahan, Katherine; Tostanoski, Lisa H.; He, Xuan; Martinez, David R.; Rutten, Lucy; Bos, Rinke; van Manen, Danielle; Vellinga, Jort; Custers, Jerome; Langedijk, Johannes P.; Kwaks, Ted; Bakkers, Mark J. G.; Zuijdgeest, David; Rosendahl Huber, Sietske K.; Atyeo, Caroline; Fischinger, Stephanie; Burke, John; Feldman, Jared; Hauser, Blake Marie; Caradonna, Timothy M.; Bondzie, Esther A.; Dagotto, Gabriel; Gebre, Makda S.; Hoffman, Emily; Jacob-Dolan, Catherine; Kirilova, Marinela; Li, Zhenfeng; Lin, Zijin; Mahrokhian, Shant H.; Maxfield, Lori F.; Nampanya, Felix; Nityanandam, Ramya; Nkolola, Joseph P.; Patel, Shivani; Ventura, John D.; Verrington, Kaylee; Wan, Huahua; Pessaint, Laurent; Van Ry, Alex; Blade, Kelvin; Strasbaugh, Amanda; Cabus, Mehtap; Brown, Renita; Cook, Anthony; Zouantchangadou, Serge; Teow, Elyse; Andersen, Hanne; Lewis, Mark G.; Cai, Yongfei; Chen, Bing; Schmidt, Aaron G.; Reeves, R. Keith; Baric, Ralph S.; Lauffenburger, Douglas A.; Alter, Galit; Stoffels, Paul; Mammen, Mathai; Van Hoof, Johan; Schuitemaker, Hanneke; Barouch, Dan; ... Show more Show less
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Abstract
A safe and effective vaccine for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) may be required to end the coronavirus disease 2019 (COVID-19) pandemic1–8. For global deployment and pandemic control, a vaccine that requires only a single immunization would be optimal. Here we show the immunogenicity and protective efficacy of a single dose of adenovirus serotype 26 (Ad26) vector-based vaccines expressing the SARS-CoV-2 spike (S) protein in non-human primates. Fifty-two rhesus macaques (Macaca mulatta) were immunized with Ad26 vectors that encoded S variants or sham control, and then challenged with SARS-CoV-2 by the intranasal and intratracheal routes9,10. The optimal Ad26 vaccine induced robust neutralizing antibody responses and provided complete or near-complete protection in bronchoalveolar lavage and nasal swabs after SARS-CoV-2 challenge. Titres of vaccine-elicited neutralizing antibodies correlated with protective efficacy, suggesting an immune correlate of protection. These data demonstrate robust single-shot vaccine protection against SARS-CoV-2 in non-human primates. The optimal Ad26 vector-based vaccine for SARS-CoV-2, termed Ad26.COV2.S, is currently being evaluated in clinical trials.
Date issued
2020-07
URI
https://hdl.handle.net/1721.1/129676
Department
Ragon Institute of MGH, MIT and Harvard; Massachusetts Institute of Technology. Department of Biological Engineering
Journal
Nature
Publisher
Springer Science and Business Media LLC
Citation
Mercado, Noe B. et al. "Single-shot Ad26 vaccine protects against SARS-CoV-2 in rhesus macaques." Nature 586, 7830 (October 2020): 583–588 © 2020 The Author(s)
Version: Author's final manuscript
ISSN
0028-0836
1476-4687

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