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COVID-19 Vaccine - Additional Doses

Individuals who qualify for a third dose of vaccine should first contact their healthcare provider to get vaccinated. Columbus Public Health offers same day, walk-in vaccines from 9 a.m.-4 p.m. Monday-Friday at Columbus Public Health (240 Parsons Ave.) No appointment needed. See the CDC guidance here:

On August 12, the US Food and Drug Administration (FDA) issued updated Emergency Use Authorizations (EUA) for mRNA COVID-19 vaccines (Moderna and Pfizer only) with new guidance on third doses for significantly immunocompromised patients.
  • The FDA defined the population covered by this guidance as those age 12 and older who have undergone a solid organ transplant or “who are diagnosed with conditions that are considered to have an equivalent level of immunocompromise.”
  • An eligible individual should receive a third dose of the same vaccine that they previously received.  (An alternate mRNA vaccine for a third dose should be used only if the type of vaccine they received previously is not available.)
  • An eligible individual should receive a third dose of the vaccine at least 28 days after receiving the second dose of the vaccine.  
  • Please note: As of this time, the FDA has not released similar guidance for an additional dose for the J&J/Janssen vaccine. In addition, the J&J EUA has not been updated to allow a patient who has received the J&J vaccine to receive additional doses of mRNA vaccine.
Our interpretation of clinical conditions covered by this guidance include:
  • Patients who have previously undergone a solid organ transplant (heart, kidney, liver, lung, pancreas) at any time in the past
  • Patients who have previously undergone a bone marrow transplant (both autologous and allogeneic) at any time in the past
  • Patients who have been diagnosed with cancer in the last 5 years or who have undergone cancer treatment in the last 5 years
  • Patients with advanced or untreated HIV/AIDS
  • Patients with primary immunodeficiency
  • Patients receiving IVIG, a biologic or other immunosuppressive medication (e.g., mycophenolate)
  • Patients receiving >20mg of Prednisone per day for longer than 14 days
At this time we do not consider patients with the following conditions eligible for a third dose or covered by this guidance:
  • Cancer patients with a past history of chemotherapy or radiation treatment that was completed over five years ago
  • Diabetes (insulin dependent and non-insulin dependent)
  • Elderly/older patients without a qualifying immunocompromising medical condition
For updated copies of the FDA EUA documents for the Moderna and Pfizer vaccines, please see: