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Answers to Your Questions

If you have questions about any of the vaccine clinics in Colorado, call the state’s vaccine hotline at 877-CO VAX CO (877-268-2926). The hotline is available Monday through Friday, 8 a.m. to 8 p.m. and Saturday and Sunday, 9 a.m. to 6 p.m. in multiple languages. Vaccine information is also available at Colorado COVID-19 Vaccine FAQ.

Learn how to stay up-to-date with your COVID vaccines with the CDC’s COVID Vaccine Interactive Booster Quiz.





Vaccine Information

COVID-19 Boosters

A bivalent booster that protects against the Omicron variants of COVID-19 is now available to individuals who have completed their primary vaccine series. The Centers for Disease Control and Prevention (CDC) currently recommend the following:

  • Individuals 12 years and older who have received the primary series should receive one bivalent Pfizer or Moderna booster at least two months after their last vaccine. You may receive either Pfizer or Moderna, regardless of the type of primary series you received.
    • You may receive a bivalent booster even if you have previously received one or more monovalent (original) boosters.
  • Individuals 5 to 11 years of age are recommended to receive one updated bivalent booster at least two months after their last vaccine.
  • Infants and children 6 months to 4 years of age are encouraged to get the COVID-19 primary series doses. They are not eligible for the updated bivalent boosters.
  • Individuals who are moderately or severely immunocompromised have different booster recommendations, which are described by the CDC.
  • It is safe and effective for women to receive a COVID-19 vaccine during pregnancy and while breastfeeding. Vaccination can also protect the newborn or infant who isn’t yet able to receive the vaccine.


Flu Vaccines

Learn more about influenza and how to get a flu vaccine.

COVID-19 and Flu Vaccines

Find a COVID-19 or flu vaccine near you.

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