COVID-19 Booster Shots

If you’re fully vaccinated, should you plan to get a COVID-19 booster shot?

As of October 21, 2021, the FDA and Center for Disease Control (CDC) recommend booster shots for certain groups of people who have received the Pfizer, Moderna and Johnson & Johnson/Jannsen COVID-19 vaccine. Eligible individuals may choose which booster shot they take, and may take a different brand than their original COVID-19 vaccine. 

Who is eligible to receive the booster shot?

For people who received the Pfizer or Moderna COVID-19 vaccine: the following groups are eligible to get a booster shot at least six months after their second shot. 

If you fall into these groups, you should talk with your doctor about whether or not a COVID-19 vaccine booster is right or you.

For people who received the Johnson & Johnson vaccine: the CDC recommends everyone older than 18 years get a booster shot two months or more after their vaccination. 

  • people age 18+ who received the J&J vaccine two or more months prior

In addition, the CDC recommends people who are immunocompromised take a third dose of the COVID-19 vaccine.  

The evidence

COVID-19 booster shots may be needed because the vaccine becomes less effective over time. It may also help stave off the Delta variant, which is more infectious than the first version of COVID-19.

Recently data suggests that, while the vaccine continues to protect against serious cases of COVID-19, booster shots may be required to avoid breakthrough cases for people who are most vulnerable. 

Because these vulnerable individuals may need booster shots most, other people are not currently eligible to receive booster shots. 


If you are not eligible for a booster shot right now and you believe that you need one, please talk with your doctor. Your healthcare team may be able to let you know when the vaccinations become available for you. Follow us on Facebook, too, for updates.

If you have any questions or concerns, talk with your primary care physician.