Vaccine Effectiveness Against Severe Disease and Death for Patients With COVID-19 During the Delta-Dominant and Omicron-Emerging Periods: A K-COVE Study
Yoo-Yeon Kim, Young June Choe, Jia Kim, Ryu Kyung Kim, Eun Jung Jang, Hyeryeon Lee, Seonju Yi, Sangwon Lee, Young-Joon Park
Abstract
National cohort data collected during the coronavirus disease 2019 (COVID-19) delta and omicron periods in Korea revealed a lower risk of severe infection in recipients of three doses of the COVID-19 vaccine (adjusted odds ratio [aOR], 0.05-0.08). The risk of death was reduced during the omicron period compared to the delta period (aOR, 0.75; 95% confidence interval, 0.67-0.84).
Topics & Concepts
Coronavirus disease 2019 (COVID-19)Odds ratioConfidence intervalMedicineSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2)Cove2019-20 coronavirus outbreakDeltaDiseaseVirologyCohortInternal medicineInfectious disease (medical specialty)GeographyOutbreakAerospace engineeringArchaeologyEngineeringSARS-CoV-2 and COVID-19 ResearchCOVID-19 Clinical Research StudiesVaccine Coverage and Hesitancy