Booster Vaccination Against COVID-19

To determine the safety and immunogenicity of booster doses of vaccine against SARS-CoV2 after a minimum of 90 days and a maximum of 270 days after the 2nd dose of a homologous 2 dose primary regimen. It is planned to recruit 111 subjects for 2 vaccines (Turkovac and CoronaVac). There will be a total of 222 subjects.