At this time, experts do not know how long someone is protected from getting sick again after recovering from COVID-19. The immunity someone gains from having an infection, called natural immunity, varies from person to person. Some early evidence suggests that natural immunity may not last very long, and risk for reinfection may get higher as time passes. Even if you already had COVID-19, you may be advised to get the vaccine. For more information on whether or not you should get vaccinated, talk to your healthcare provider.