1. Immunology measured using serum Anti Spike protein IgG levels at 28 days 2. Safety/Reactogenicity measured using the following from participant records: 2.1. Incidence and details of solicited adverse events between 0 and 7 days 2.2. Incidence and details of unsolicited adverse events between 0 and 28 days 2.3. Incidence and details of Serious Adverse Events (SAEs) and Adverse Events of Special Interest (AESIs) throughout the study

1. Immunology measured using serum Anti Spike protein IgG levels at 28 days 2. Safety/Reactogenicity measured using the following from participant records: 2.1. Incidence and details of solicited adverse events between 0 and 7 days 2.2. Incidence and details of unsolicited adverse events between 0 and 28 days 2.3. Incidence and details of Serious Adverse Events (SAEs) and Adverse Events of Special Interest (AESIs) throughout the study