ChAdOx1 nCoV-19 (AZD1222) vaccine candidate significantly reduces SARS-CoV-2 shedding in ferrets
Abstract Vaccines against SARS-CoV-2 are likely to be critical in the management of the ongoing pandemic. A number of candidates are in Phase III human clinical trials, including ChAdOx1 nCoV-19 (AZD1222), a replication-deficient chimpanzee adenovirus-vectored vaccine candidate. In preclinical trial...
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Nature Portfolio
2021
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oai:doaj.org-article:50b66ce00589424eb554445061a674842021-12-02T15:36:30ZChAdOx1 nCoV-19 (AZD1222) vaccine candidate significantly reduces SARS-CoV-2 shedding in ferrets10.1038/s41541-021-00315-62059-0105https://doaj.org/article/50b66ce00589424eb554445061a674842021-05-01T00:00:00Zhttps://doi.org/10.1038/s41541-021-00315-6https://doaj.org/toc/2059-0105Abstract Vaccines against SARS-CoV-2 are likely to be critical in the management of the ongoing pandemic. A number of candidates are in Phase III human clinical trials, including ChAdOx1 nCoV-19 (AZD1222), a replication-deficient chimpanzee adenovirus-vectored vaccine candidate. In preclinical trials, the efficacy of ChAdOx1 nCoV-19 against SARS-CoV-2 challenge was evaluated in a ferret model of infection. Groups of ferrets received either prime-only or prime-boost administration of ChAdOx1 nCoV-19 via the intramuscular or intranasal route. All ChAdOx1 nCoV-19 administration combinations resulted in significant reductions in viral loads in nasal-wash and oral swab samples. No vaccine-associated adverse events were observed associated with the ChAdOx1 nCoV-19 candidate, with the data from this study suggesting it could be an effective and safe vaccine against COVID-19. Our study also indicates the potential for intranasal administration as a way to further improve the efficacy of this leading vaccine candidate.Glenn A. MarshAlexander J. McAuleyGough G. AuSarah RiddellDaniel LaytonNagendrakumar B. SinganallurRachel LaytonJean PaynePeter A. DurrHannah BenderJennifer A. BarrJohn BinghamVictoria BoydSheree BrownMatthew P. BruceKathie BurkettTeresa EastwoodSarah EdwardsTamara GoughKim HalpinJenni HarperClare HolmesWilliam S. J. HormanPetrus Jansen van VurenSuzanne LowtherKate MaynardKristen D. McAuleyMatthew J. NeaveTimothy PooleChristina RootesBrenton RoweElisha SoldaniVittoria StevensCameron R. StewartWilly W. SuenMary TachedjianShawn ToddLee TrinidadDuane WalterNaomi WatsonTrevor W. DrewSarah C. GilbertTeresa LambeS. S. VasanNature PortfolioarticleImmunologic diseases. AllergyRC581-607Neoplasms. Tumors. Oncology. Including cancer and carcinogensRC254-282ENnpj Vaccines, Vol 6, Iss 1, Pp 1-8 (2021) |
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Immunologic diseases. Allergy RC581-607 Neoplasms. Tumors. Oncology. Including cancer and carcinogens RC254-282 |
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Immunologic diseases. Allergy RC581-607 Neoplasms. Tumors. Oncology. Including cancer and carcinogens RC254-282 Glenn A. Marsh Alexander J. McAuley Gough G. Au Sarah Riddell Daniel Layton Nagendrakumar B. Singanallur Rachel Layton Jean Payne Peter A. Durr Hannah Bender Jennifer A. Barr John Bingham Victoria Boyd Sheree Brown Matthew P. Bruce Kathie Burkett Teresa Eastwood Sarah Edwards Tamara Gough Kim Halpin Jenni Harper Clare Holmes William S. J. Horman Petrus Jansen van Vuren Suzanne Lowther Kate Maynard Kristen D. McAuley Matthew J. Neave Timothy Poole Christina Rootes Brenton Rowe Elisha Soldani Vittoria Stevens Cameron R. Stewart Willy W. Suen Mary Tachedjian Shawn Todd Lee Trinidad Duane Walter Naomi Watson Trevor W. Drew Sarah C. Gilbert Teresa Lambe S. S. Vasan ChAdOx1 nCoV-19 (AZD1222) vaccine candidate significantly reduces SARS-CoV-2 shedding in ferrets |
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Abstract Vaccines against SARS-CoV-2 are likely to be critical in the management of the ongoing pandemic. A number of candidates are in Phase III human clinical trials, including ChAdOx1 nCoV-19 (AZD1222), a replication-deficient chimpanzee adenovirus-vectored vaccine candidate. In preclinical trials, the efficacy of ChAdOx1 nCoV-19 against SARS-CoV-2 challenge was evaluated in a ferret model of infection. Groups of ferrets received either prime-only or prime-boost administration of ChAdOx1 nCoV-19 via the intramuscular or intranasal route. All ChAdOx1 nCoV-19 administration combinations resulted in significant reductions in viral loads in nasal-wash and oral swab samples. No vaccine-associated adverse events were observed associated with the ChAdOx1 nCoV-19 candidate, with the data from this study suggesting it could be an effective and safe vaccine against COVID-19. Our study also indicates the potential for intranasal administration as a way to further improve the efficacy of this leading vaccine candidate. |
format |
article |
author |
Glenn A. Marsh Alexander J. McAuley Gough G. Au Sarah Riddell Daniel Layton Nagendrakumar B. Singanallur Rachel Layton Jean Payne Peter A. Durr Hannah Bender Jennifer A. Barr John Bingham Victoria Boyd Sheree Brown Matthew P. Bruce Kathie Burkett Teresa Eastwood Sarah Edwards Tamara Gough Kim Halpin Jenni Harper Clare Holmes William S. J. Horman Petrus Jansen van Vuren Suzanne Lowther Kate Maynard Kristen D. McAuley Matthew J. Neave Timothy Poole Christina Rootes Brenton Rowe Elisha Soldani Vittoria Stevens Cameron R. Stewart Willy W. Suen Mary Tachedjian Shawn Todd Lee Trinidad Duane Walter Naomi Watson Trevor W. Drew Sarah C. Gilbert Teresa Lambe S. S. Vasan |
author_facet |
Glenn A. Marsh Alexander J. McAuley Gough G. Au Sarah Riddell Daniel Layton Nagendrakumar B. Singanallur Rachel Layton Jean Payne Peter A. Durr Hannah Bender Jennifer A. Barr John Bingham Victoria Boyd Sheree Brown Matthew P. Bruce Kathie Burkett Teresa Eastwood Sarah Edwards Tamara Gough Kim Halpin Jenni Harper Clare Holmes William S. J. Horman Petrus Jansen van Vuren Suzanne Lowther Kate Maynard Kristen D. McAuley Matthew J. Neave Timothy Poole Christina Rootes Brenton Rowe Elisha Soldani Vittoria Stevens Cameron R. Stewart Willy W. Suen Mary Tachedjian Shawn Todd Lee Trinidad Duane Walter Naomi Watson Trevor W. Drew Sarah C. Gilbert Teresa Lambe S. S. Vasan |
author_sort |
Glenn A. Marsh |
title |
ChAdOx1 nCoV-19 (AZD1222) vaccine candidate significantly reduces SARS-CoV-2 shedding in ferrets |
title_short |
ChAdOx1 nCoV-19 (AZD1222) vaccine candidate significantly reduces SARS-CoV-2 shedding in ferrets |
title_full |
ChAdOx1 nCoV-19 (AZD1222) vaccine candidate significantly reduces SARS-CoV-2 shedding in ferrets |
title_fullStr |
ChAdOx1 nCoV-19 (AZD1222) vaccine candidate significantly reduces SARS-CoV-2 shedding in ferrets |
title_full_unstemmed |
ChAdOx1 nCoV-19 (AZD1222) vaccine candidate significantly reduces SARS-CoV-2 shedding in ferrets |
title_sort |
chadox1 ncov-19 (azd1222) vaccine candidate significantly reduces sars-cov-2 shedding in ferrets |
publisher |
Nature Portfolio |
publishDate |
2021 |
url |
https://doaj.org/article/50b66ce00589424eb554445061a67484 |
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