Effectiveness of CoronaVac, ChAdOx1, BNT162b2 and Ad26.COV2.S among individuals with prior SARS-CoV-2 infection in Brazil

dc.creatorSilva, Thiago Cerqueira
dc.creatorAndrews, Jason R.
dc.creatorBoaventura, Viviane S.
dc.creatorRanzani, Otavio T.
dc.creatorOliveira, Vinicius de Araújo
dc.creatorPaixão, Enny S.
dc.creatorBertoldo Júnior, Juracy
dc.creatorMachado, Tales Mota
dc.creatorHitchings, Matt D.T.
dc.creatorDorion, Murilo
dc.creatorLind, Margaret L.
dc.creatorPenna, Gerson Oliveira
dc.creatorCummings, Derek A.T.
dc.creatorDean, Natalie E.
dc.creatorWerneck, Guilherme Loureiro
dc.creatorBarreto, Maurício Lima
dc.creatorKo, Albert Icksang
dc.creatorCroda, Julio
dc.creatorBarral Netto, Manoel
dc.date2022-01-06T01:29:04Z
dc.date2022-01-06T01:29:04Z
dc.date2021
dc.date.accessioned2023-09-26T21:13:14Z
dc.date.available2023-09-26T21:13:14Z
dc.identifierCERQUEIRA-SILVA, Thiago et al. Effectiveness of CoronaVac, ChAdOx1, BNT162b2 and Ad26.COV2.S among individuals with prior SARS-CoV-2 infection in Brazil. The BMJ, p. 1-30, 27 Dec. 2021.
dc.identifierhttps://www.arca.fiocruz.br/handle/icict/50655
dc.identifier10.1101/2021.12.21.21268058
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8871031
dc.descriptionDados da pesquisa estão no anexo do artigo.
dc.descriptionTodos os dados foram pseudo-anônimos com um identificador único comum fornecido pelo Ministério da Saúde do Brasil. O protocolo de pesquisa foi aprovado pela Comissão Nacional de Ética em Pesquisa (CONEP) (número de aprovação 4.921.308).
dc.descriptionConselho Nacional de Pesquisa, Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, Fundação Oswaldo Cruz, JBS SA, Instituto de Salud Carlos III, Ministério da Ciência e Inovação da Espanha, Generalitat de Catalunya.
dc.descriptionBackground: COVID-19 vaccines have proven highly effective among SARS-CoV-2 naive individuals, but their effectiveness in preventing symptomatic infection and severe outcomes among individuals with prior infection is less clear. Methods: Utilizing national COVID-19 notification, hospitalization, and vaccination datasets from Brazil, we performed a case-control study using a test-negative design to assess the effectiveness of four vaccines (CoronaVac, ChAdOx1, Ad26.COV2.S and BNT162b2) among individuals with laboratory-confirmed prior SARS-CoV-2 infection. We matched RTPCR positive, symptomatic COVID-19 cases with RT-PCR-negative controls presenting with symptomatic illnesses, restricting both groups to tests performed at least 90 days after an initial infection. We used multivariable conditional logistic regression to compare the odds of test positivity, and the odds of hospitalization or death due to COVID-19, according to vaccination status and time since first or second dose of vaccines. Findings: Among individuals with prior SARS-CoV-2 infection, vaccine effectiveness against symptomatic infection ≥ 14 days from vaccine series completion was 39.4% (95% CI 36.1-42.6) for CoronaVac, 56.0% (95% CI 51.4-60.2) for ChAdOx1, 44.0% (95% CI 31.5- 54.2) for Ad26.COV2.S, and 64.8% (95% CI 54.9-72.4) for BNT162b2. For the two-dose vaccine series (CoronaVac, ChAdOx1, and BNT162b2), effectiveness against symptomatic infection was significantly greater after the second dose compared with the first dose. Effectiveness against hospitalization or death ≥ 14 days from vaccine series completion was 81.3% (95% CI 75.3-85.8) for CoronaVac, 89.9% (95% CI 83.5-93.8) for ChAdOx1, 57.7% (95% CI -2.6-82.5) for Ad26.COV2.S, and 89.7% (95% CI 54.3-97.7) for BNT162b2. Interpretation. All four vaccines conferred additional protection against symptomatic infections and severe outcomes among individuals with previous SARS-CoV-2 infection. Provision of a full vaccine series to individuals following recovery from COVID-19 may reduce morbidity and mortality.
dc.formatapplication/pdf
dc.languageeng
dc.publisherYale University
dc.rightsopen access
dc.subjectCoronavírus
dc.subjectCOVID-19
dc.subjectCoronaVac
dc.subjectEstudos de casos e controles
dc.subjectControle de doenças transmissíveis
dc.subjectCOVID-19
dc.subjectCoronaVac
dc.subjectChAdOx1
dc.subjectBNT162b2 and Ad26.COV2.S
dc.subjectTest-negative study
dc.subjectCase-control study
dc.subjectPrevious infections
dc.titleEffectiveness of CoronaVac, ChAdOx1, BNT162b2 and Ad26.COV2.S among individuals with prior SARS-CoV-2 infection in Brazil
dc.typePreprint


Este ítem pertenece a la siguiente institución