1. Acute illness with or without fever at the time of study vaccine administration <br/ >2. History of laboratory confirmed COVID-19 disease in household contact or close workplace contact <br/ >3. IgG seropositivity to SARS-CoV-2 <br/ >4. History or currently positive for SARS-CoV-2 by RT-PCR <br/ >5. History of severe allergic reactions after previous vaccinations or hypersensitivity to any component of study vaccines <br/ >6. Any confirmed or suspected condition with impaired/altered function of immune system

1. Acute illness with or without fever at the time of study vaccine administration <br/ >2. History of laboratory confirmed COVID-19 disease in household contact or close workplace contact <br/ >3. IgG seropositivity to SARS-CoV-2 <br/ >4. History or currently positive for SARS-CoV-2 by RT-PCR <br/ >5. History of severe allergic reactions after previous vaccinations or hypersensitivity to any component of study vaccines <br/ >6. Any confirmed or suspected condition with impaired/altered function of immune system

N/A

N/A

1. Acute illness with or without fever at the time of study vaccine administration <br/ >2. History of laboratory confirmed COVID-19 disease in household contact or close workplace contact <br/ >3. IgG seropositivity to SARS-CoV-2 <br/ >4. History or currently positive for SARS-CoV-2 by RT-PCR <br/ >5. History of severe allergic reactions after previous vaccinations or hypersensitivity to any component of study vaccines <br/ >6. Any confirmed or suspected condition with impaired/altered function of immune system

1. Acute illness with or without fever at the time of study vaccine administration <br/ >2. History of laboratory confirmed COVID-19 disease in household contact or close workplace contact <br/ >3. IgG seropositivity to SARS-CoV-2 <br/ >4. History or currently positive for SARS-CoV-2 by RT-PCR <br/ >5. History of severe allergic reactions after previous vaccinations or hypersensitivity to any component of study vaccines <br/ >6. Any confirmed or suspected condition with impaired/altered function of immune system