1. Previous laboratory-confirmed diagnosis of COVID 19. 2. Previous vaccination with any COVID-19 vaccine. 3. Receipt of medications intended to prevent COVID 19. 4. Participation in other studies involving a study intervention within 28 days prior to study entry and/or during study participation. 5. History of severe adverse reaction associated with a vaccine and/or severe allergic reaction (eg, anaphylaxis) to any component of the study intervention(s). 6. Individuals who receive treatment with immunosuppressive therapy, including cytotoxic agents or systemic corticosteroids, eg, for cancer or an autoimmune disease, or planned receipt throughout the study. 7. Bleeding diathesis or condition associated with prolonged bleeding that would, in the opinion of the investigator, contraindicate intramuscular injection. 8. Women who are pregnant or breastfeeding will be informed that there is no data on the safety of these vaccines among these groups and will be given the opportunity to decide if they are willing to participate in the trial.

1. Previous laboratory-confirmed diagnosis of COVID 19. 2. Previous vaccination with any COVID-19 vaccine. 3. Receipt of medications intended to prevent COVID 19. 4. Participation in other studies involving a study intervention within 28 days prior to study entry and/or during study participation. 5. History of severe adverse reaction associated with a vaccine and/or severe allergic reaction (eg, anaphylaxis) to any component of the study intervention(s). 6. Individuals who receive treatment with immunosuppressive therapy, including cytotoxic agents or systemic corticosteroids, eg, for cancer or an autoimmune disease, or planned receipt throughout the study. 7. Bleeding diathesis or condition associated with prolonged bleeding that would, in the opinion of the investigator, contraindicate intramuscular injection. 8. Women who are pregnant or breastfeeding will be informed that there is no data on the safety of these vaccines among these groups and will be given the opportunity to decide if they are willing to participate in the trial.