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COVID-19 vaccine effectiveness against SARS-CoV-2 infection in the United States prior to the Delta and Omicron-associated surges: a retrospective cohort study of repeat blood donors
Eduard Grebe; Elaine A. Yu; Marjorie D. Bravo; Alex Welte; Roberta L. Bruhn; Mars Stone; Valerie Green; Phillip C. Williamson; Leora R. Feldstein; Jefferson M. Jones; Michael P. Busch; Brian Custer.
Afiliação
  • Eduard Grebe; Vitalant Research Institute
  • Elaine A. Yu; Vitalant Research Institute
  • Marjorie D. Bravo; Vitalant
  • Alex Welte; Stellenbosch University
  • Roberta L. Bruhn; Vitalant Research Institute
  • Mars Stone; Vitalant Research Institiute
  • Valerie Green; Creative Testing Solutions
  • Phillip C. Williamson; Creative Testing Solutions
  • Leora R. Feldstein; Centers for Disease Control and Prevention
  • Jefferson M. Jones; Centers for Disease Control and Prevention
  • Michael P. Busch; Vitalant Research Institute
  • Brian Custer; Vitalant Research Institute
Preprint em Inglês | medRxiv | ID: ppmedrxiv-22273412
ABSTRACT
To inform public health policy, it is critical to monitor COVID-19 vaccine effectiveness (VE), including against acquiring infection. We estimated VE using a retrospective cohort study among repeat blood donors who donated during the first half of 2021, demonstrating a viable approach for monitoring of VE via serological surveillance. Using Poisson regression, we estimated overall VE was 88.8% (95% CI 86.2-91.1), adjusted for demographic covariates and variable baseline risk. Time since first reporting vaccination, age, race-ethnicity, region, and calendar time were statistically significant predictors of incident infection. Studies of VE during periods of Delta and Omicron spread are underway.
Licença
cc_no
Texto completo: Disponível Coleções: Preprints Base de dados: medRxiv Tipo de estudo: Cohort_studies / Experimental_studies / Estudo observacional / Estudo prognóstico Idioma: Inglês Ano de publicação: 2022 Tipo de documento: Preprint
Texto completo: Disponível Coleções: Preprints Base de dados: medRxiv Tipo de estudo: Cohort_studies / Experimental_studies / Estudo observacional / Estudo prognóstico Idioma: Inglês Ano de publicação: 2022 Tipo de documento: Preprint
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