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Citation Information: JCI Insight. 2021;6(10):e146082. https://doi.org/10.1172/jci.insight.146082.
Abstract
Emerging coronaviruses from zoonotic reservoirs, including severe acute respiratory syndrome coronavirus (SARS-CoV), Middle East respiratory syndrome coronavirus (MERS-CoV), and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), have been associated with human-to-human transmission and significant morbidity and mortality. Here, we study both intradermal and intramuscular 2-dose delivery regimens of an advanced synthetic DNA vaccine candidate encoding a full-length MERS-CoV spike (S) protein, which induced potent binding and neutralizing antibodies as well as cellular immune responses in rhesus macaques. In a MERS-CoV challenge, all immunized rhesus macaques exhibited reduced clinical symptoms, lowered viral lung load, and decreased severity of pathological signs of disease compared with controls. Intradermal vaccination was dose sparing and more effective in this model at protecting animals from disease. The data support the further study of this vaccine for preventing MERS-CoV infection and transmission, including investigation of such vaccines and simplified delivery routes against emerging coronaviruses.
Authors
Ami Patel, Emma L. Reuschel, Ziyang Xu, Faraz I. Zaidi, Kevin Y. Kim, Dana P. Scott, Janess Mendoza, Stephanie Ramos, Regina Stoltz, Friederike Feldmann, Atsushi Okumura, Kimberly Meade-White, Elaine Haddock, Tina Thomas, Rebecca Rosenke, Jamie Lovaglio, Patrick W. Hanley, Greg Saturday, Kar Muthumani, Heinz Feldmann, Laurent M. Humeau, Kate E. Broderick, David B. Weiner
Usage data is cumulative from October 2021 through October 2022.
| Usage | JCI | PMC |
|---|---|---|
| Text version | 3,619 | 150 |
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| Figure | 126 | 3 |
| Supplemental data | 27 | 5 |
| Citation downloads | 57 | 0 |
| Totals | 4,033 | 199 |
| Total Views | 4,232 | |
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