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. 2022 Jan 15;8:2. doi: 10.1186/s40794-021-00159-x

Table 4.

Effectiveness of the Coronavac vaccine

Effectiveness of CoronaVac
 Prevent mild forms 94.3%
 Prevent moderate forms 99.9%
 Prevent severe forms 99.9%
 Prevent deaths 99.9%
 Mortality rate pre-vaccination* 2.2%
 Mortality rate post-vaccination in individuals fully vaccinated 0.22%