News Who can get a second Pfizer or Moderna COVID-19 vaccine booster? Here’s what you should know. March 30, 2022 Adrianna Rodriguez, USA TODAY Comments Off on Who can get a second Pfizer or Moderna COVID-19 vaccine booster? Here’s what you should know. The CDC says the extra booster is especially important for people 65 and older, and those 50 and older who have underlying medical conditions.