Emerging Infectious Diseases (Aug 2022)

Household Secondary Attack Rates of SARS-CoV-2 Omicron Variant, South Korea, February 2022

  • Do Sang Lim,
  • Young June Choe,
  • Young Man Kim,
  • Sang Eun Lee,
  • Eun Jung Jang,
  • Jia Kim,
  • Young-Joon Park

DOI
https://doi.org/10.3201/eid2808.220384
Journal volume & issue
Vol. 28, no. 8
pp. 1731 – 1734

Abstract

Read online

We studied the effect of booster vaccinations on reducing household transmission of SARS-CoV-2 B.1.1529 (Omicron) variant in a February 2022 sampling of contacts in South Korea. The secondary attack rate was lower for vaccinated versus unvaccinated contacts, and booster vaccination resulted in a lower incidence rate ratio.

Keywords