Booster/3rd Shot Information

Eligibility Information for COVID-19 Booster Shots and 3rd Doses for Immunocompromised Individuals.

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Booster Shot FAQs

Picture of COVID-19 vaccine vials

Pediatric Pfizer Vaccine Booster Shots (Ages 5-11)

The FDA and CDC have authorized a booster dose of the Pfizer vaccine for children ages 5-11 to be administered five months after the original vaccine series. The Howard County Health Department will begin offering these boosters shots to eligible children at all upcoming pediatric Pfizer vaccine clinics (appointment required). Parents may also contact their child's pediatrician to ask about booster shot availability. It is recommended that everyone in this age group receive a booster shot when eligible.

Second Booster Shots

The CDC updated its recommendations so that Pfizer and Moderna second boosters are now recommended for adults age 50 and older and people age 12 and older who are moderately or severely immunocompromised who received an initial booster dose at least 4 months ago.

Separately and in addition, based on newly published data, adults who received a primary vaccine and booster dose of Johnson & Johnson’s Janssen COVID-19 vaccine at least 4 months ago should now receive a second booster dose using an mRNA COVID-19 vaccine.

Booster Shots

The FDA and CDC authorized booster shots of the Pfizer, Moderna, and Johnson & Johnson vaccines for all individuals age 18 and older (age 12 for Pfizer). Please review the following information.

  • If you received the Johnson & Johnson vaccine, you are eligible for any vaccine booster shot, if you are 18 years of age or older, two months following your initial vaccination.
  • If you received the Moderna vaccine, you are eligible for the booster shot if you are 18 years of age or older, five months after your final vaccination. 
  • If you received the Pfizer vaccine, you are eligible for the booster shot if you are 12 years of age or older, five months after your final vaccination. **Pfizer is the only vaccine approved for adolescents ages 12-17, including booster shots.**

(Adults 18 and older may choose any vaccine booster no matter which original vaccine was received.)

Documentation of your previous vaccine series will be required. Either bring your vaccine card or verify your vaccine information has been accurately recorded in Immunet, the State of Maryland Immunization database. Individuals should talk to their healthcare provider about their specific situation and which vaccine is best for them.

Find more information about Booster Shots from the CDC hereBooster shots are also available from local pharmacies, retail stores, and/or your medical provider. Individuals who need assistance scheduling an appointment should call 410-313-6284.

3rd/4th doses for Immunocompromised Individuals

The Health Department continues to administer 3rd doses of mRNA (Pfizer and Moderna) vaccine to individuals considered moderately to severely immunocompromised at all Health Department-run clinics. Individuals should talk to their healthcare provider about their medical condition, and whether getting an additional dose is appropriate for them.

The CDC provides additional information about those individuals that may meet the criteria for immunocompromised here. Though no proof or doctor's note will be required at HCHD-run clinics, individuals will be asked to self-attest that they are immunocompromised and eligible for a 3rd vaccine dose. Please bring your vaccine card with you to verify the vaccine type you should receive.

Moderately and severely immunocompromised people aged ≥12 years who completed an mRNA COVID-19 vaccine primary series and received an additional mRNA vaccine dose may receive a single COVID-19 booster dose (Pfizer-BioNTech or Moderna) at least 3 months after completing their third mRNA vaccine dose. In such situations, people who are moderately and severely immunocompromised should receive a total of four COVID-19 vaccine doses. (A primary series of 3 doses, plus 1 booster dose.) Those who received a J&J/Janssen primary vaccine should receive an mRNA additional dose, followed by another mRNA booster at least 2 months following the second (mRNA) dose, for a total of 3 COVID-19 vaccine doses. (1 J&J/Janssen dose, followed by 1 additional mRNA dose, then 1 booster dose. mRNA vaccines are preferred for the booster dose.)

Click here for more information.

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