Frequently Asked Questions

How can I receive a COVID-19 vaccine from the Houston Health Department?

Houston Health Department-affiliated vaccination sites are located across the city and open for walk-ins or appointments. Find sites or schedule appointments at, or call 832-393-4220 or 832-393-4301 for assistance.

  • People 60 & older (Area Agency on Aging): 832-393-4301.
  • People with disabilities (Disability Resource Center): 832-393-5500.
  • Additional assistance (COVID-19 Call Center): 832-393-4220.

When should I get my second dose of vaccine?

The Pfizer and Moderna vaccines require two doses for maximum protection, so people will need to get a second dose of the same vaccine three to six (Pfizer) or four to six (Moderna) weeks later. 

Do I need to call or go online to schedule an appointment for my second dose? 

No. The Houston Health Department continues reaching out by text message and email with information to schedule second doses of COVID-19 vaccine. The messages contain a survey link for people to self-register for a second dose appointment.

If a person does not receive a message and confirm their appointment 48 hours before Moderna’s recommended 28-day due date, please contact the COVID-19 call center at 832-393-4220.

If contact information has changed since a person received their first dose from the health department, please alert the call center.

Do I have to live in Houston to get vaccinated by the Houston Health Department? 

No. The Houston Health Department does not deny COVID-19 services based on residency.  

Where can I get a replacement immunization card if I lose it after being completely vaccinated?

Immunization records can be obtained through the Texas Department of State Health Services. Email or call (800) 252-9152 for information.

Do I need to receive an email or text message before my appointment is confirmed.

Yes. Appointments are only confirmed upon receipt of an email or text message and confirmation numbers will be verified on site.

How do I know if a text or email is really from HHD and not a scam?

The Houston Health Department will never ask for social security, banking, or immigration information when scheduling COVID-19 vaccinations. Please do not provide this information if someone calls, emails, or texts claiming to be from the Houston Health Department. Legitimate text messages and emails from the Houston Health Department contain a link to schedule. Please do not reply directly to a text message or email with personal information.

How early should I arrive to my appointment?

Please arrive no more than 15 minutes before your appointment. This helps ensure site efficiency and wait times.

What should I expect when I arrive? 

When you arrive to your location, follow the on-site prompts. You will go through registration then given further instructions. All sites have safety precautions in place and please follow instructions for the safety of everyone. 

Is there a lot of walking involved at HHD vaccine clinics? What should I do if I have mobility issues?

Our sites provide accommodations for those with mobility or other issues. Please make a staff member aware of your needs during check in.

What should I do if I was able to get an appointment on the website, but never received a confirmation email or text?

If you did not receive a confirmation email or text message but were able to see the confirmation screen after making your appointment, please proceed at your scheduled time and date.

How much does the vaccine cost? 

There is no cost to receive the COVID-19 vaccine from the Houston Health Department.

Do I have to have insurance?

No. Getting vaccinated is FREE and does not require ID, proof of residency, citizenship, or insurance.

Do I need to have immigration paperwork?

No. Getting vaccinated is FREE and does not require ID, proof of residency, citizenship, or insurance.

Can a COVID-19 vaccine make me sick with COVID-19?

No. None of the authorized and recommended COVID-19 vaccines or COVID-19 vaccines currently in development in the United States contain the live virus that causes COVID-19. This means that a COVID-19 vaccine cannot make you sick with COVID-19.
There are several different types of vaccines in development. All of them teach our immune systems how to recognize and fight the virus that causes COVID-19. Sometimes this process can cause symptoms, such as fever. These symptoms are normal and are a sign that the body is building protection against the virus that causes COVID-19. Learn more about how COVID-19 vaccines work.

After getting a COVID-19 vaccine, will I test positive for COVID-19 on a viral test?
No. Neither the recently authorized and recommended vaccines nor the other COVID-19 vaccines currently in clinical trials in the United States can cause you to test positive on viral tests, which are used to see if you have a current infection.
If your body develops an immune response—the goal of vaccination—there is a possibility you may test positive on some antibody tests. Antibody tests indicate you had a previous infection and that you may have some level of protection against the virus. Experts are currently looking at how COVID-19 vaccination may affect antibody testing results.

Important Links

African American medical professional giving a younger African American younger person a vaccination, both wearing masks. Text reads :Take Your Best SHot: Get Vaccinated Against COVID-19."
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