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COVID-19 Vaccine Information

COVID-19 Vaccine Information

Who Is Currently Eligible for the COVID-19 Vaccine?

In the U.S., all persons 5 years of age and older are eligible to receive the Pfizer COVID-19 vaccine. Persons 18 years of age and older are eligible to receive the Moderna vaccine or the Johnson & Johnson vaccine.

Booster Shots

The FDA has issued emergency use authorization and the CDC has issued guidelines for booster shots of the Pfizer, Moderna and Johnson & Johnson COVID-19 vaccine to individuals 18 and older. 

People who received Pfizer and Moderna in this group may receive a booster shot no sooner than 6 months after their second vaccination. For detailed information about these recommendations, visit

For individuals who received the Johnson & Johnson COVID-19 vaccine, booster shots are also recommended for those who are 18 and older and who were vaccinated two or more months ago.

The FDA has also authorized health care providers to provide a "mix and match" approach for COVID-19 booster shots, which allows eligible patients to choose which vaccine they receive as a booster dose. However, University Health is only offering the Pfizer and Moderna COVID-19 vaccines at this time.

Pfizer vaccines (1st and 2nd doses, and boosters) and Moderna boosters are available Monday - Friday, 10 a.m. - 6 p.m. on the upper level of Wonderland of the Americas, 4522 Fredericksburg Rd. No appointment or registration needed. 

Pfizer vaccines (1st and 2nd doses, and boosters) and Moderna vaccines (1st and 2nd doses, and boosters) are available Monday – Saturday,  8 a.m. to 5 p.m. at our Robert B. Green Campus Pharmacy. No appointment or registration needed.

We are not offering J&J vaccines at this time.

Important information if you are planning to get a Pfizer or Moderna booster shot:

  • You must wait 6 months after you receive your 2nd dose of Pfizer or Moderna. Please check your vaccination card. We cannot give it earlier. Anyone who received a vaccination through University Health can access their vaccine record through their MyChart account.
  • You must wait 2 months after you receive J&J vaccine to receive Pfizer or Moderna booster.
  • You must bring your vaccination card with you if you did not get your 1st and 2nd doses from University Health. We cannot give you a booster shot without proof that you received two doses of the vaccine.

Third Doses

Following CDC recommendations, University Health is currently offering 3rd dose shots of the Pfizer and Moderna COVID-19 vaccines for persons who are moderately to severely immunocompromised.

According to the CDC, this group includes some people receiving cancer treatments, organ and stem cell transplant recipients, persons with severe immunodeficiency or untreated HIV infection, or those taking medications that may suppress the immune system. These people may not have had a strong immune response to the vaccine, so the CDC recommends a third dose.

The CDC recommends immunocompromised persons receive their 3rd dose shot no sooner than four weeks after their 2nd dose. 

Free COVID-19 Vaccinations 

We offer the Pfizer and Moderna vaccines free of charge at several of our pharmacy locations. No appointment or registration needed.

COVID-19 Vaccination Center at Wonderland- Upper Level
Pfizer vaccines available for persons 12 and older, and children 5-11
Moderna boosters available at this location
Monday  - Friday 10 a.m. – 6 p.m.
4522 Fredericksburg Rd.
Upper Level, Suite B51

Robert B. Green Campus Pharmacy
Pfizer and Moderna vaccines available at this location
Monday - Saturday 8 a.m. – 5 p.m.
903 W. Martin Street

Medical Center Pavilion
Pfizer vaccine available at this location
Monday – Friday 8 a.m. – 5 p.m.
4647 Medical Drive

Southeast Clinic
Pfizer vaccine available at this location
Monday – Friday 8 a.m. – 5 p.m.
1055 Ada Street, Annex Building

Southwest Clinic
Pfizer vaccine available at this location
Monday – Friday 8 a.m. – 5 p.m.
2121 SW. 36th Street

Texas Diabetes Institute
Pfizer vaccine available at this location
Monday – Friday 8 a.m. – 5 p.m.
701 S. Zarzamora Street

An adult family member or guardian must accompany children in order to provide written consent for the vaccination. Proof of age is not required. 

Persons coming to receive a booster shot must bring their vaccine card or log on to their MyChart account to show which vaccine they have already received and when they were vaccinated. To ensure safety, booster doses will not be offered earlier than the time intervals authorized by the FDA and recommended by the CDC.

We encourage you to learn more about what to bring and what to expect after your vaccination.

Safety and Efficacy

The Pfizer vaccine is now fully approved by the Food and Drug Administration (FDA) for people 16 years and older. The vaccine continues to be available to those 12 -15 years old under emergency use authorization. Please review FDA approval of the Pfizer vaccine for more information about the approval process.

The Moderna, Johnson & Johnson vaccines continue to be available for people 18 and older through emergency use authorization. This authorization by the FDA follows a rigorous review of safety and effectiveness data gathered through large clinical trials.

Vaccines are cleared for Emergency Use Authorization after rigorous review by FDA based on scientific evidence about safety and effectiveness gathered through large clinical trials. 

Please review the Moderna Emergency Use Authorization (EUA)Pfizer Emergency Use Authorization (EAU) and Janssen Emergency Use Authorization (EAU) for detailed information about the vaccines.

Learn more about v-safe, a vaccination health checker.