Yes, no vaccine is 100 percent protective. After vaccination, people can still get covid 19. Vaccination will prevent the severe outcome of covid. When you are fully vaccinated, then also you need to continue all the protective measures of covid 19. The protective measures such as wearing a mask, maintaining a physical distance of at least 6 feet from others when outside your home, washing hands with soap and water for atleast 20 seconds or using hand sanitiser, etc.