Abstract
A SARS-CoV-2 B.1.1.7 variant of concern (VOC) has been associated with increased trans-missibility, hospitalization, and mortality. This study aimed to explore the factors associated with B.1.1.7 VOC infection in the context of vaccination. On March 2021, we detected SARS-CoV-2 RNA in nasopharyngeal samples from 14 of 22 individuals vaccinated with a single-dose of ChAdOx1 (outbreak A, n = 26), and 22 of 42 of individuals with two doses of the CoronaVac vaccine (outbreak B, n = 52) for breakthrough infection rates for ChAdOx1 of 63.6% and 52.4% for CoronaVac. The outbreaks were caused by two independent clusters of the B.1.1.7 VOC. The serum of PCR-positive symptomatic SARS-CoV-2-infected individuals had ~1.8–3.4-fold more neutralizing capacity against B.1.1.7 compared to the serum of asymptomatic individuals. These data based on exploratory analysis suggest that the B.1.1.7 variant can infect individuals partially immunized with a single dose of an adenovirus-vectored vaccine or fully immunized with two doses of an inactivated vaccine, although the vaccines were able to reduce the risk of severe disease and death caused by this VOC, even in the elderly.
| Original language | English |
|---|---|
| Article number | 2127 |
| Journal | Viruses |
| Volume | 13 |
| Issue number | 11 |
| DOIs | |
| State | Published - Nov 2021 |
Bibliographical note
Publisher Copyright:© 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Funding
Funding: This study was supported by grants from São Paulo Research Foundation (FAPESP, grant nos. 2016/00194-8 and 2020/04558-0), Fundo de Apoio ao Ensino, Pesquisa e Extensão from UNI-CAMP (FAEPEX-UNICAMP, grant no. 2266/20). This study was also supported by MCTI through the Rede Corona-ômica Brazil/MCTI (funded by the Financier of Studies and Projects [FINEP] grant no. 01.20.0003.00), RedeVírus/MCTI (FINEP grant no. 01.20.0029.000462/20), and the Brazilian National Council for Scientific and Technological Development, CNPq, grant no. 404096/2020-4). J.L.P.-M. is supported by CNPq grant no. 305628/2020-8. W.M.d.S. was supported by FAPESP, grant nos. 2017/13981-0, 2019/24251-9 and CNPq grant no. 408338/2018-0. R.S.C was funded by FAPESP, grant no. 2019/09704-7. B.D.B was supported by CNPq grant no. 401977/2020-0. S.P.M., G.F.S., K.B.d.-S., and P.L.P. were supported by FAPESP fellowships (2018/13645-3, 2018/10224-7, 2020/02159-0, and 2017/26908-0). M.R.A. and P.P.B. were supported by Coordination for the Improvement of Higher Education Personnel (CAPES, grant nos. 88887.356527/2019-00, 88887.513267/2020-00) fellowships, whereas D.A.T.-T. and L.S.M. were supported by CNPq fellowships (grant nos. 141844/2019-1 and 382206/2020-7). N.R.F. was supported by a Wellcome Trust and Royal Society Sir Henry Dale Fellowship (grant no. 204311/Z/16/Z). This project was supported by the Medical Research Council and FAPESP-Brazil-UK Center for (Arbo)virus Discovery, Diagnosis, Genomics, and Epidemiology partnership award (MR/S0195/1 and FAPESP 2018/14389-0). S.C.W. was supported by NIH grant AI120942. This study was supported by grants from S?o Paulo Research Foundation (FAPESP, grant nos. 2016/00194-8 and 2020/04558-0), Fundo de Apoio ao Ensino, Pesquisa e Extens?o from UNI-CAMP (FAEPEX-UNICAMP, grant no. 2266/20). This study was also supported by MCTI through the Rede Corona-?mica Brazil/MCTI (funded by the Financier of Studies and Projects [FINEP] grant no. 01.20.0003.00), RedeV?rus/MCTI (FINEP grant no. 01.20.0029.000462/20), and the Brazilian National Council for Scientific and Technological Development, CNPq, grant no. 404096/2020-4). J.L.P.-M. is supported by CNPq grant no. 305628/2020-8. W.M.d.S. was supported by FAPESP, grant nos. 2017/13981-0, 2019/24251-9 and CNPq grant no. 408338/2018-0. R.S.C was funded by FAPESP, grant no. 2019/09704-7. B.D.B was supported by CNPq grant no. 401977/2020-0. S.P.M., G.F.S., K.B.d.-S., and P.L.P. were supported by FAPESP fellowships (2018/13645-3, 2018/10224-7, 2020/02159-0, and 2017/26908-0). M.R.A. and P.P.B. were supported by Coordination for the Improvement of Higher Education Personnel (CAPES, grant nos. 88887.356527/2019-00, 88887.513267/2020-00) fellowships, whereas D.A.T.-T. and L.S.M. were supported by CNPq fellowships (grant nos. 141844/2019-1 and 382206/2020-7). N.R.F. was supported by a Wellcome Trust and Royal Society Sir Henry Dale Fel-lowship (grant no. 204311/Z/16/Z). This project was supported by the Medical Research Council and FAPESP-Brazil-UK Center for (Arbo)virus Discovery, Diagnosis, Genomics, and Epidemiology partnership award (MR/S0195/1 and FAPESP 2018/14389-0). S.C.W. was supported by NIH grant AI120942. Acknowledgments: We thank Thermo Fisher Scientific, which kindly provided an EVOS inverted microscope for the BSL3 facility at Emerging Viruses Laboratory, as well as the UNICAMP-Task-Force against COVID-19 that facilitated this study. Team of professionals from Vigil?ncia em Sa?de do Distrito de Sa?de Leste, DEVISA, Campinas for their support in obtaining clinical and epidemiologi-cal information related to the outbreaks. Lastly, the Brazilian Ministry of Science, Technology, and Innovation (MCTI) and all members of the Corona-?mica network are thanked for their support.
| Funders | Funder number |
|---|---|
| Brazilian Ministry of Science, Technology, and Innovation | |
| FAEPEX-UNICAMP | 2266/20 |
| FAPESP-Brazil-UK Center | 2018/14389-0, MR/S0195/1 |
| Financier of Studies and Projects | |
| Fundo de Apoio ao Ensino, Pesquisa e Extens?o | |
| Fundo de Apoio ao Ensino, Pesquisa e Extensão | |
| Royal Society Sir Henry Dale Fel-lowship | |
| Royal Society Sir Henry Dale Fellowship | 204311/Z/16/Z |
| UNI-CAMP | |
| National Institutes of Health (NIH) | AI120942 |
| National Institutes of Health (NIH) | |
| Wellcome Trust | |
| Medical Research Council | |
| Fundação de Amparo à Pesquisa do Estado de São Paulo | 2016/00194-8, 2020/04558-0 |
| Fundação de Amparo à Pesquisa do Estado de São Paulo | |
| Coordenação de Aperfeiçoamento de Pessoal de Nível Superior | 88887.513267/2020-00, 88887.356527/2019-00, 141844/2019-1, 382206/2020-7 |
| Coordenação de Aperfeiçoamento de Pessoal de Nível Superior | |
| Ministério da Ciência, Tecnologia e Inovação | |
| Conselho Nacional de Desenvolvimento Científico e Tecnológico | 2019/09704-7, 305628/2020-8, 408338/2018-0, 2017/26908-0, 2018/10224-7, 2020/02159-0, 404096/2020-4, 2018/13645-3, 2017/13981-0, 2019/24251-9, 401977/2020-0 |
| Conselho Nacional de Desenvolvimento Científico e Tecnológico | |
| Financiadora de Estudos e Projetos | 01.20.0029.000462/20, 01.20.0003.00 |
| Financiadora de Estudos e Projetos |
Keywords
- B.1.1.7
- COVID-19
- Outbreak
- SARS-CoV-2
- Vaccine
- Variant of concern
ASJC Scopus subject areas
- Infectious Diseases
- Virology