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Table 1 Matched odds ratio and vaccine effectiveness of CoronaVac against COVID-19 infection, May–June 2021

From: Rapid method through routine data to evaluate real-world vaccine effectiveness against coronavirus disease 2019 (COVID-19) infection: lessons from Thailand

  Control Matched odds ratio (95%CI) Vaccine effectiveness (95%CI)
CoronaVac (two doses) No vaccination
Cases CoronaVac for at least 14 days 2022 132 0.28 (95% CI 0.23–0.33) 72% (95% CI 67–77%)
No vaccination 478 120