Vaccine calculator: Another vaccine

If you are 12 and older and: 

Received a COVID-19 vaccine listed for emergency use by WHO, but not approved or authorized by the FDA;


Completed a mix-and-match series composed of any combination of FDA-approved, FDA-authorized, or WHO-EUL COVID-19 vaccines

You can get another dose in Colorado. If you are 12 to 17 years old, your next dose should be Pfizer. If you are 18 or older, your next dose can be Pfizer or Moderna.

Schedule your follow-up dose at least five months after the final dose in your primary series.

Find a vaccine near you.