Do I *really* need a COVID-19 booster? Does it matter?


A: Yes. The boosters are an essential part of the COVID-19 vaccine series. They are not optional or extra. When the COVID-19 vaccine trails began, the main goal was to make a safe, effective vaccine that could be tested as fast as possible. The two doses in the primary series (for Pfizer, Moderna, Novavax, AstraZeneca,