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Kurup D, Wirblich C, Zabihi Diba L, Lambert R, Watson M, Shaikh N, Ramage H, Solomides C, Schnell MJ. A Single Dose of the Deactivated Rabies-Virus Vectored COVID-19 Vaccine, CORAVAX, Is Highly Efficacious and Alleviates Lung Inflammation in the Hamster Model. Viruses 2022; 14:v14061126. [PMID: 35746597 PMCID: PMC9229041 DOI: 10.3390/v14061126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 05/17/2022] [Accepted: 05/17/2022] [Indexed: 11/16/2022] Open
Abstract
Without sufficient herd immunity through either vaccination or natural infection, the coronavirus disease 2019 pandemic is unlikely to be controlled. Waning immunity with the currently approved vaccines suggests the need to evaluate vaccines causing the induction of long-term responses. Here, we report the immunogenicity and efficacy of our adjuvanted single-dose Rabies-vectored SARS-CoV-2 S1 vaccine, CORAVAX, in hamsters. CORAVAX induces high SARS-CoV-2 S1-specific and virus-neutralizing antibodies (VNAs) that prevent weight loss, viral loads, disease, lung inflammation, and the cytokine storm in hamsters. We also observed high Rabies VNA titers. In summary, CORAVAX is a promising dual-antigen vaccine candidate for clinical evaluation against SARS-CoV-2 and Rabies virus.
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Affiliation(s)
- Drishya Kurup
- Department of Microbiology and Immunology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA 19107, USA; (D.K.); (C.W.); (L.Z.D.); (R.L.); (M.W.); (N.S.); (H.R.)
| | - Christoph Wirblich
- Department of Microbiology and Immunology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA 19107, USA; (D.K.); (C.W.); (L.Z.D.); (R.L.); (M.W.); (N.S.); (H.R.)
| | - Leila Zabihi Diba
- Department of Microbiology and Immunology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA 19107, USA; (D.K.); (C.W.); (L.Z.D.); (R.L.); (M.W.); (N.S.); (H.R.)
| | - Rachael Lambert
- Department of Microbiology and Immunology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA 19107, USA; (D.K.); (C.W.); (L.Z.D.); (R.L.); (M.W.); (N.S.); (H.R.)
| | - Megan Watson
- Department of Microbiology and Immunology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA 19107, USA; (D.K.); (C.W.); (L.Z.D.); (R.L.); (M.W.); (N.S.); (H.R.)
| | - Noor Shaikh
- Department of Microbiology and Immunology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA 19107, USA; (D.K.); (C.W.); (L.Z.D.); (R.L.); (M.W.); (N.S.); (H.R.)
| | - Holly Ramage
- Department of Microbiology and Immunology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA 19107, USA; (D.K.); (C.W.); (L.Z.D.); (R.L.); (M.W.); (N.S.); (H.R.)
| | - Charalambos Solomides
- Department of Pathology, Thomas Jefferson University Hospital, Philadelphia, PA 19107, USA;
| | - Matthias J. Schnell
- Department of Microbiology and Immunology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA 19107, USA; (D.K.); (C.W.); (L.Z.D.); (R.L.); (M.W.); (N.S.); (H.R.)
- Jefferson Vaccine Center, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA 19107, USA
- Correspondence:
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