evidence: People who get COVID-19 after being vaccinated are much more likely to only experience mild symptoms as effectiveness against serious illness and death remains high. Vaccine effectiveness wanes over time, so it’s important to stay updated with your shots as recommended by your health care provider. [...] Billions of people have received the COVID-19 vaccine to date, showing that the benefits of COVID-19 vaccinations outweigh the risks of getting ill with COVID-19. Do not delay COVID-19 vaccination if it is recommended for you by your health care provider. Getting vaccinated could protect you from severe illness and save your life. [...] More serious or long-lasting side effects of COVID-19 vaccines are possible but extremely rare. National health authorities monitor vaccines to detect and respond to rare adverse events. At the regional and global level, WHO also supports countries in monitoring vaccine safety.