Nature Communications (Jun 2022)

Effect of vaccination on household transmission of SARS-CoV-2 Delta variant of concern

  • Frederik Plesner Lyngse,
  • Kåre Mølbak,
  • Matt Denwood,
  • Lasse Engbo Christiansen,
  • Camilla Holten Møller,
  • Morten Rasmussen,
  • Arieh Sierra Cohen,
  • Marc Stegger,
  • Jannik Fonager,
  • Raphael Niklaus Sieber,
  • Kirsten Maren Ellegaard,
  • Claus Nielsen,
  • Carsten Thure Kirkeby

DOI
https://doi.org/10.1038/s41467-022-31494-y
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 8

Abstract

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COVID-19 vaccines may reduce the susceptibility of an individual to infection and/or the infectiousness of breakthrough infections. Here, the authors use data from Denmark and estimate that vaccine effectiveness was 61% for susceptibility and 31% for infectiousness during a period of Delta variant dominance.