COVID-19 Vaccination Information

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The U.S. Food and Drug Administration (FDA) and Centers for Disease Control and Prevention (CDC) have authorized a single booster dose for the three COVID-19 vaccines available in the United States (Pfizer/Comirnaty, Moderna, and Johnson & Johnson/Janssen) to strengthen protection against serious outcomes from COVID-19 and/or against COVID-19 infection. Eligibility, dosage, and timing of booster doses vary by individual COVID-19 vaccine product. Not all Ohioans are eligible to receive a booster dose at this time, including people who are younger than 18. Factors that determine booster dose eligibility include age, health conditions, and work or living settings. Following required actions by the U.S. Food and Drug Administration (FDA) and the Centers for Disease Control and Prevention (CDC) for each vaccine product, Ohio COVID-19 vaccine providers can administer booster doses, as soon as practical and people are determined eligible.  Eligible vaccine recipients may now receive a booster dose of any available COVID-19 vaccine product. The booster dose does not have to match the original dose/series.  Schedule your shot at  For more information visit


Who will be the first people to get a booster dose?


If FDA authorizes and ACIP recommends a booster dose, the goal is for the first people eligible for a booster dose to be those who were the first to receive a COVID-19 vaccination (those who are most at risk). This includes healthcare providers, residents of long-term care facilities, and other older adults. This is not expected to happen till at least September 20, 2021. Stay tuned to this webpage for an announcement for MCHD-based booster clinics!


The 3rd dose of COVID-19 Vaccine IS NOT a booster dose

These additional doses for immunocompromised persons should not be confused with booster doses. At this time, additional booster doses are not authorized or recommended for any individuals based upon waning immunity over time. The need for and timing of a COVID-19 booster dose have not been established, according to the FDA.


Immunocompromised Individuals Definition

“Immunocompromised people are at a much higher risk for severe outcomes from COVID-19 and may not develop a sufficient immune response from their primary vaccination series,” said Dr. Bruce Vanderhoff, Director of the Ohio Department of Health. “These individuals have a reduced ability to fight infections and are particularly vulnerable now as the more contagious and more dangerous Delta variant is driving a surge in cases. This additional dose, combined with other prevention strategies including wearing face masks, avoiding crowds and maintaining physical distance, offers another important layer of protection for this small but important population.”


Eligibility to receive 3rd dose of COVID-19 Vaccine

The CDC has further defined this eligible population to include: 

  • Individuals undergoing active treatment for cancer (solid tumor and hematologic malignancies).
  • Individuals who have received a solid-organ transplant and are taking immunosuppressive therapy.
  • Individuals who have received a CAR-T-cell or hematopoietic stem cell transplant (within two years of transplant or taking immunosuppression therapy).
  • Individuals with moderate or severe primary immunodeficiency (e.g., DiGeorge syndrome, Wiskott-Aldrich syndrome).
  • Individuals with advanced or untreated HIV infection.
  • Individuals undergoing active treatment with high-dose corticosteroids (i.e., ≥20mg prednisone or equivalent per day), alkylating agents, antimetabolites, transplant-related immunosuppressive drugs, cancer chemotherapeutic agents classified as severely immunosuppressive, tumor-necrosis (TNF) blockers, and other biologic agents that are immunosuppressive or immunomodulatory.

Recommended layered prevention

The CDC recommends extra precautions for immunocompromised individuals alongside an additional dose: Immunocompromised people (including those who receive an additional mRNA dose) should be aware of the potential for reduced immune response to COVID-19 vaccination and should follow ongoing prevention measures including:

  • Wearing a mask.
  • Staying 6 feet apart from others outside their 
  • Avoiding crowds and poorly ventilated indoor spaces.
  • Close contacts of immunocompromised people are strongly encouraged to be vaccinated against COVID-19.