(COLUMBIA, MO) - After review, recommendation and authorization from the Food and Drug Administration (FDA) and Centers for Disease Control and Prevention (CDC), booster doses of the Pfizer-BioNTech COVID-19 vaccine are recommended for individuals aged 12 to 15. Boosters for those aged 16 and older were previously recommended.

Boosters for those aged 12 to 17 are authorized for the Pfizer vaccine 5 months after completing the primary vaccination series. For those aged 18 and older, boosters of Pfizer, Moderna and Johnson & Johnson vaccines are recommended.

The time between the primary series of Pfizer and a booster has been changed from 6 months to 5 months for all eligible ages. Moderna remains at 6 months and Johnson & Johnson remains at 2 months.

Individuals who are age 5 or older and have been diagnosed with conditions that make them considered to be moderately or severely immunocompromised are eligible for a third dose of the Pfizer vaccine at least 28 days following the second dose. A third dose of Pfizer or Moderna for immunocompromised individuals aged 18 and older was previously recommended.

People are considered to be moderately or severely immunocompromised if they have:
  • Been receiving active cancer treatment for tumors or cancers of the blood
  • Received an organ transplant and are taking medicine to suppress the immune system
  • Received a stem cell transplant within the last 2 years or are taking medicine to suppress the immune system
  • Moderate or severe primary immunodeficiency (such as DiGeorge syndrome, Wiskott-Aldrich syndrome)
  • Advanced or untreated HIV infection
  • Active treatment with high-dose corticosteroids or other drugs that may suppress your immune response

People should talk to their health care provider about their medical condition, and whether getting an additional primary shot is appropriate for them.

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Columbia/Boone County Public Health and Human Services, 1005 W. Worley St., will have appointment-only COVID-19 vaccination clinics at the office on set days. These clinics will be for anyone who needs any dose in the series (first, second, third or booster dose) of the Pfizer, Moderna or Johnson & Johnson vaccines. Individuals 5 years old and older are eligible for the Pfizer vaccine while the Moderna and Johnson & Johnson vaccines are available for individuals aged 18 and older. Appointments are required and can be scheduled here: as availability allows. Vaccines are free and do not require health insurance.

COVID-19 vaccines are widely available in Boone County. A list of other Boone County vaccinators can be found by visiting

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