Created at	Source	Raw Value	Validated value
Jan. 3, 2021, 12:31 a.m.	usa	Frequency of confirmed cases of COVID-19;Terms of seroconversion (the proportion of persons with a fourfold or higher change in antibody titers to SARS-CoV-2);To evaluate the immunogenicity of the QazCovid-in® vaccine inactivated against COVID-19 versus placebo	Frequency of confirmed cases of COVID-19;Terms of seroconversion (the proportion of persons with a fourfold or higher change in antibody titers to SARS-CoV-2);To evaluate the immunogenicity of the QazCovid-in® vaccine inactivated against COVID-19 versus placebo