evidence: COVID-19 vaccination is an important part of protecting yourself if you're at increased risk of getting seriously ill from COVID-19. [...] You may still get or spread COVID-19 even if you have a vaccine, so it's important to follow advice about how to avoid catching and spreading COVID-19. [...] There have been rare cases of inflammation of the heart (myocarditis) reported after COVID-19 vaccination. Most people who had this recovered following rest and simple treatments.