Schedule COVID-19 Vaccine: Same-day available | Primary Series and Booster Shot Recommendations
COVID-19 Vaccine Information
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COVID-19 vaccines and booster shots: Who is eligible and how to get one
Time & Date
Tuesday, April 5, 2022
Primary Series
A person is considered “fully vaccinated” two weeks after receiving all recommended doses in the primary series of their COVID-19 vaccination. Your primary series doses depend on your age, your health status, what vaccine you first received, and when you first got vaccinated. Review the CDC’s webpage and recommendation chart to understand how to stay up-to-date with your COVID-19 vaccines.
Booster Shots
Pfizer booster shots are approved for everyone 12 years old and older, and some people are eligible for a second booster shot. The CDC chart below outlines who should get a booster, when to get a booster and which booster you should get. Schedule your booster shot online.
| Primary Series COVID-19 Vaccine | Who should get one booster: | When to get your booster: | Which booster can you get: |
|---|---|---|---|
| Pfizer-BioNTech | Everyone 12 years and older Who can get a second booster: Adults 50 years and older | At least 5 months after completing your primary COVID-19 vaccination series If eligible for a second booster, at least 4 months after your first booster | -Adults 18 years and older should get an mRNA COVID-19 vaccine (Pfizer-BioNTech or Moderna) for the first booster in most* situations -The second booster must be an mRNA COVID-19 vaccine -Teens 12-17 years old may only get a Pfizer-BioNTech COVID-19 vaccine booster |
| Moderna | Adults 18 years and older Who can get a second booster: Adults 50 years and older | At least 5 months after completing your primary COVID-19 vaccination series If eligible for a second booster, at least 4 months after your first booster | For the first booster, an mRNA COVID-19 vaccine (Pfizer-BioNTech or Moderna) is preferred in most* situations The second booster must be an mRNA COVID-19 vaccine |
| Johnson & Johnson's Janssen* | Adults 18 years and older Who can get a second booster: Anyone who received a J&J/Janssen COVID-19 vaccine for both their primary dose and booster Adults 50 years and older who first received a J&J/Janssen COVID-19 vaccine, regardless of what type of booster they received | At least 2 months after receiving your J&J/Janssen COVID-19 vaccination If eligible for a second booster, at least 4 months after your first booster | For the first booster, an mRNA COVID-19 vaccine (Pfizer-BioNTech or Moderna) is preferred in most* situations The second booster must be an mRNA COVID-19 vaccine |
Mixing and Matching Vaccine Brands
mRNA vaccines (Pfizer and Moderna) are preferred, but J&J/Janssen COVID-19 vaccines may be considered in some situations. UT Health San Antonio primarily provides Pfizer vaccines. Vaccines can be scheduled online.
Established primary care patients, 18 years and older, may schedule a Moderna vaccine by calling their provider's office or schedule using MyChart. We do not offer J&J vaccines.
Vaccine and Booster Shot Recommendations for Immunocompromised Individuals
Those who are moderately or severely immunocompromised (have a weakened immune system) are at increased risk of severe COVID-19 illness and death. Their immune response to the COVID-19 vaccination may not be as strong as in people who are not immunocompromised. To stay up-to-date, the CDC recommends:
- Children ages 5 through 11 years who are moderately or severely immunocompromised receive a primary series of 3 doses of Pfizer-BioNTech COVID-19 vaccine as shown on this schedule.
- People ages 12 years and older who are moderately or severely immunocompromised should receive a total of 4 doses of mRNA COVID-19 vaccine to stay up to date.
Ready to schedule?
Schedule your COVID-19 shot online
UT Health San Antonio primarily provides Pfizer vaccine. Established primary care patients may schedule a Moderna vaccine by calling their UT Health San Antonio primary care location or using MyChart to schedule.
If you are not an established patient and want a Moderna or J&J/Janssen COVID-19 vaccine, check availability with your primary care provider, local pharmacy or community mass vaccination site. Find a vaccine location at Vaccines.gov.
Where can I learn more about COVID-19 vaccines and booster schedules?
Detailed information about COVID-19 booster shots and third dose recommendations is available on the CDC’s website.
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