Yes. Vaccines are just one of several tools to help end the pandemic. COVID-19 vaccines are highly likely to prevent people from becoming ill due to COVID-19. However, additional research over the next several months is needed to show: Whether the COVID-19 vaccine, in addition to preventing illness, also prevents infection from the virus Whether a person who has been vaccinated can spread the virus For this reason, it is essential for everyone, including those who have been vaccinated, to continue using all the tools available to help stop the spread of infection, including covering mouth and nose with a mask, washing hands often, staying at least 6 feet away from others, testing when indicated, and following all guidance from state and county health officials.