Get the facts about COVID-19 vaccines – Mayo Clinic

Getting a COVID-19 vaccine can help protect you by creating an antibody response in your body without your having to become sick with COVID-19. A COVID-19 vaccine might prevent you from getting COVID-19. Or, if you get COVID-19, the vaccine might keep you from becoming seriously ill or from developing serious complications.

https://www.mayoclinic.org/diseases-conditions/coronavirus/in-depth/coronavirus-vaccine/art-20484859