On current treatment with investigational agents for prophylaxis of COVID-19. Plan to travel outside Nigeria from enrolment through 28 days after the last vaccination Participation in other clinical trials Known hypersensitivity to any of the vaccine components History of hypersensitivity or severe allergic reaction Laboratory parameters outside of normal range considered clinically relevant Pregnant woman

On current treatment with investigational agents for prophylaxis of COVID-19. Plan to travel outside Nigeria from enrolment through 28 days after the last vaccination Participation in other clinical trials Known hypersensitivity to any of the vaccine components History of hypersensitivity or severe allergic reaction Laboratory parameters outside of normal range considered clinically relevant Pregnant woman