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

Do Sang Lim, Young June Choe, Young Man Kim and 4 more

Emerging Infectious Diseases · 2022

doi:10.3201/eid2808.220384 (opens in a new tab)

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Abstract

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.

Abstract licence: CC BY

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