Covid vaccine booster shots

With the Delta variants on the rise, booster shots are critical to strengthening protection against severe disease and complications such as hospital admissions.

As of October 21st, 2021, the FDA and CDC authorized COVID-19 vaccine booster shot for people age 65+ and people age 18+ live in long-term care, have underlying medical conditions or live/work in high-risk settings.

The single booster dose is recommended for those who completed their initial vaccination with any of the three COVID-19 vaccines and allows for mix & match between the three vaccines for a single booster dose.

We will continue to follow and stay up to date with the latest CDC recommendations on COVID-19 vaccines. For the most up to date information, visit the CDC website:


Being informed, being smart, and getting vaccinated is how we get back to normal faster.

Our services help you and your family stay safe and feel well.

Vaccine safety

  • COVID-19 vaccines from Johnson and Johnsnon, Pfizer and Moderna have been authorized by the FDA for emergency use 
  • The Pfizer and Moderna vaccines are mRNA vaccines, a newer technology that triggers an immune response without affecting or interacting with DNA
  • The development process was informed by decades of research
  • Clinical trials of vaccines were able to be safely and effectively sped up by mobilizing resources and using cutting-edge technologies
  • Other vaccines are still being developed and may be authorized soon

What we are doing to protect patients

Our medical centers have been updated for your health and safety.

  • Signage and floor markers to help you maintain a safe physical distance from others
  • Face coverings are required in our centers per CDC guidance
  • Regular cleaning of hard surfaces and frequently handled items between each patient visit
  • Protective panels at registration and checkout
  • Fewer signatures required
  • Expanded telehealth and care at home services
  • Also, Sanitas team members and medical staff are currently getting vaccinated, as we work closely with patients

COVID-19 Research and News

Looking for more? Browse additional COVID-19 resources to help you stay informed. Our doctors have also put together several articles to help you stay up to date.

See the latest news from the CDC
Do you need a COVID test?
Get informed through our COVID articles

COVID Vaccine Frequently Asked Questions

The FDA has granted Emergency Use Authorization for the COVID-19 vaccine developed by Pfizer-BioNTech, Moderna and Janssen (a Johnson and Johnson company) so far, with more in development. These vaccines are currently available to the general population and are expected to be expanded to children during Summer/Fall 2021.

For the most current eligibility for your state, please visit:

At select locations, yes. Call 1-866-221-2481 to find a location near you and schedule an appointment. 

  • Vaccines have played an important role in protecting the health and safety of communities and nations throughout history. The approved COVID-19 vaccines have undergone rigorous, multiple phased testing by the manufacturers as well as comprehensive evaluation by the FDA of the scientific data, manufacturing process and distribution techniques required.
  • Learn how the federal government is ensuring the safety of COVID-19 vaccines at:

According to the CDC and FDA, adverse reactions are usually mild to moderate in intensity and resolve within a few days.

Common side effect on the arm where you got the shot:

  • Pain
  • Redness
  • Swelling

Common side effects throughout the rest of your body:

  • Tiredness
  • Headache
  • Muscle pain
  • Chills
  • Fever
  • Nausea

In most cases, these common side effects are a normal sign that your body is building protection. It is not recommended to take any allergy or pain meds before vaccination for the purpose of trying to avoid side effects.
Contact your doctor or visit a Sanitas Urgent Care location if:

  • The redness or tenderness where you got the shot gets worse after 24 hours
  • Your side effects are worrying you 
  • Your side effects do not seem to go away after a few days
  • We don’t know the answer to this question at the current time with the data that is available. Per the Prescribing information we will not administer COVID-19 vaccine to individuals with known history of a severe allergic reaction (e.g., anaphylaxis) to any component of the COVID-19 vaccine.
  • Consult your primary care doctor to discuss this rare possibility and evaluate the risks before scheduling an appointment to get the COVID-19 vaccine.

Three types of COVID-19 vaccines are currently or soon will be undergoing clinical trials in the United States: mRNA, Protein subunit and vector. Each uses different technologies that recognize and protect us from COVID-19. The CDC provides further information here:

It depends on which COVID-19 vaccine you can get. 
The Johnson and Johnson/Janssen vaccine only requires one dose. 

The Pfizer and Moderna vaccines require two doses. The first shot will start building protection, and the second shot will help provide the most protection the vaccine offers. The waiting period between each dose will vary based on the manufacturer.

It is a 21-day period for Pfizer and a 28-day period for Moderna. This can vary by a few days to allow for scheduling follow up.

Yes. The Centers for Medicare & Medicaid Services states that people without health insurance or whose insurance does not provide coverage of COVID-19 vaccines can also get a COVID-19 vaccine at no cost.

Sanitas encourages all our patients to get vaccinated as soon as possible except for patients with known history of severe allergic reaction to any component of the COVID-19 vaccine.

Right now, the best vaccine is the vaccine you can get. 

Yes. Sanitas offers $0 COVID-19 rapid testing at select locations if you have insurance or qualify for the federal program for the uninsured. To find a Sanitas testing site near you and book a test, visit

If you have symptoms or think you may have been recently exposed, you can book an appointment with a Sanitas provider on the website, on the mySanitas Chat app or by calling 1-844-665-4827.

Emergency Use Authorization (EUA) authority allows the FDA to facilitate the availability and use of medical countermeasures during public health emergencies, such as the current COVID-19 pandemic. It allows manufacturers to submit products including vaccines for review during the final stages of testing to allow the product to be available sooner when there are no adequate or available alternatives.

Yes. Clinical trials are evaluating COVID-19 vaccines in tens of thousands of studies participates in three (3) phases to generate the scientific data and other information needed by the FDA to determine safety and effectiveness. These clinical trials are conducted according to rigorous standards set forth by the FDA. There is also ongoing safety monitoring and reporting.

The most up-to-date and comprehensive information can be found at: