To determine the relative efficacy of the investigational oral SARS-CoV2 vaccine tablet VXA-CoV2-3.1 compared to a currently recommended vaccine for the prevention of symptomatic COVID-19. There are 6 office visits to the clinic.
18 and over both male and female.
Completed the COVID vaccine series with at least 2 vaccines.
Negative COVID test at screening.
Compensation up to $500.