1. Healthy male or female between the ages of 18 and 69 years. 2. SARS-CoV-2 seronegative subjects aged 18 to 69 years, inclusive. 3. Documented SARS-CoV-2 antibody test result prior to Day 0 vaccination (negative result required) 4. Body mass index (BMI) 17 to 35 kg/m2, inclusive, at screening.

1. Healthy male or female between the ages of 18 and 69 years. 2. SARS-CoV-2 seronegative subjects aged 18 to 69 years, inclusive. 3. Documented SARS-CoV-2 antibody test result prior to Day 0 vaccination (negative result required) 4. Body mass index (BMI) 17 to 35 kg/m2, inclusive, at screening.