An official website of the United States government
Here's how you know
A .mil website belongs to an official U.S. Department of Defense organization in the United States.
A lock (lock ) or https:// means you’ve safely connected to the .mil website. Share sensitive information only on official, secure websites.

News | Dec. 2, 2021

COVID-19 Booster Shots: Check Your Eligibility

By TRICARE Communications

Are you wondering if you’re eligible for a COVID-19 booster shot? The answer is yes, if you’re age 18 or older. The Centers for Disease Control and Prevention (CDC) recently expanded eligibility for COVID-19 vaccine booster shots as further described below.
 
“As the COVID-19 virus continues to evolve, we also must adjust our approach to fight the virus,” said Dr. Margaret Ryan, medical director of Defense Health Agency’s Immunization Healthcare Division for the Pacific Region. “Although the vaccines are still very effective in reducing risk of severe disease, hospitalization, and death, we’re learning that protection from illness does wane with time. The booster shot increases the level of protection.”
 
You may have questions about COVID-19 vaccine booster shots. Here are some common answers to questions to help you or a family member learn if you’re eligible for a booster shot, why you need it, and where you can get it.
 
Q: Who is eligible for the COVID-19 booster shot?
A:  All adults age 18 or older who received Pfizer-BioNTech, Moderna, or Johnson & Johnson’s Janssen primary COVID-19 vaccination series can get a booster. Those who received a complete series of a World Health Organization Emergency Use Listing vaccine or clinical trial vaccine are eligible as well.
 
Q: When should I get the COVID-19 booster shot, if eligible?
A: All adults age 18 or older who received the Pfizer-BioNTech or Moderna vaccine should get a booster shot six months or more after completing their initial two-dose series, per the CDC.
 
If you’re age 18 or older and got the Johnson & Johnson’s Janssen vaccine, the CDC recommends you get a booster shot at least two months after receiving your first dose.
 
Q: Why do I need a COVID-19 booster shot?
A: According to the CDC, the COVID-19 vaccines are working well to help protect adults and children ages 5 years and older against COVID-19 and its potentially severe complications. However, medical experts are beginning to see reduced protection against mild and moderate disease. This is especially true among certain groups in the adult population. The booster shot helps shore up your immunization against this kind of sickness.
 
There’s currently no recommendation for boosters in the 5-17 year old population.
 
The CDC still defines “fully vaccinated” as two weeks after completing the two-dose series for Pfizer-BioNTech or Moderna vaccines and the one-dose for the Johnson & Johnson’s Janssen vaccine.
 
Q: Can I “mix and match” my COVID-19 booster shot?
A: Yes, if you received a Food and Drug Administration-authorized or approved vaccine for your primary series. Some people may prefer to use the same vaccine they originally received. Others may want to get a different booster—the “mix and match” method. The CDC allows for this type of mix and match dosing for booster shots. You can use any of the COVID-19 vaccines that are authorized in the U.S. for your booster shot.
 
If you finished a complete series of a World Health Organization Emergency Use Listing vaccine or clinical trial vaccine, you should discuss your options with your health care team.  
 
Q: Where can I get the COVID-19 booster shot?
A: Just like with your initial COVID-19 vaccine shots, you can get the COVID-19 booster shot at:  
The COVID-19 vaccine booster shot is free. But if you aren’t on active duty, you may have a cost for an office visit when seeing a civilian provider. You may also have costs if you need follow-on care. 
 
Have more questions about COVID-19 vaccines or booster shots? Be sure to consult with your health care provider or local pharmacist. You can also visit the CDC website. And you can review COVID-19 information and resources on the TRICARE website.

At the time of posting, this information is current. Visit www.cdc.gov or TRICARE COVID Guidance for the most current COVID-19 information.
Uniformed service member stands in office and answers landline phone.

Unlock Your Health by Knowing When To Get Emerge...

News
Sep. 24, 2024

Both emergency rooms and urgent care clinics can help you with a medical issue. But they’re different and...
Read More
Woman looks down at computer screen displaying TRICARE.mil/newsletters webpage. Text reads, "Catch up on the latest health news! www.tricare.mil/newsletters"

Stay In the Know With TRICARE Newsletters

News
Sep. 19, 2024

Did you know that TRICARE publishes quarterly newsletters? The TRICARE Health Matters Newsletter and the...
Read More
Smiling mother holds baby wearing onesie in her arm. Baby smiles up at grinning father.

TRICARE Dental Program Automatically Enrolls Kid...

News
Sep. 17, 2024

As a new parent, you have a lot on your mind—but dental insurance for your baby might not be at the top of the...
Read More
Woman sits on couch and smiles while looking down at smartphone.

How To Access Your MHS GENESIS Patient Portal

News
Sep. 12, 2024

Looking to access your health information? It’s never been easier, thanks to the MHS GENESIS Patient Portal...
Read More
A man poses for a photo in a maintenance shop with a saw table behind him.

TRICARE Is Your Partner in Mental Health Care

News
Sep. 10, 2024

Suicidal thoughts can be experienced by anyone and are a serious mental health concern. If you or someone you...
Read More
Smiling woman stands in front of American flag.

Unlock Your Health With Patient Advocates and Be...

News
Sep. 03, 2024

Did you know that military hospitals and clinics come with a support staff of people who can help you navigate...
Read More
Map of the United States. West Region is highlighted in blue, while East Region is highlighted in green. Six states (Arkansas, Illinois, Louisiana, Oklahoma, Texas, and Wisconsin) are highlighted in blue/green with arrows moving them from the East to the West.

Know How TRICARE Regions Are Changing in 2025

News
Aug. 30, 2024

On Jan. 1, 2025, there will be changes to the TRICARE regions in the United States as part of TRICARE's new...
Read More
Uniformed Sailor wearing glasses gives shot to another Sailor sitting down.

Learn How To Get Your TRICARE Vaccines Overseas

News
Aug. 28, 2024

Flu season is right around the corner—which means it’s time to start thinking about getting vaccines for...
Read More

Sept. 24, 2024

Unlock Your Health by Knowing When To Get Emergency Care vs. Urgent Care

Both emergency rooms and urgent care clinics can help you with a medical issue. But they’re different and serve your needs in different ways. When you or a family member needs medical care quickly, it’s important to know the difference between the two.

Sept. 19, 2024

Stay In the Know With TRICARE Newsletters

Did you know that TRICARE publishes quarterly newsletters? The TRICARE Health Matters Newsletter and the TRICARE Dental Program Health Matters Newsletter offer helpful information about your health and dental plans, as well as the latest TRICARE news.

Sept. 17, 2024

TRICARE Dental Program Automatically Enrolls Kids at Age 1

As a new parent, you have a lot on your mind—but dental insurance for your baby might not be at the top of the list. Don’t worry! The TRICARE Dental Program helps military families by signing up kids at age 1.

Sept. 12, 2024

How To Access Your MHS GENESIS Patient Portal

Looking to access your health information? It’s never been easier, thanks to the MHS GENESIS Patient Portal. This secure, online tool allows you to manage your health care at military hospitals and clinics from the comfort of your home or on the go.  

Sept. 10, 2024

TRICARE Is Your Partner in Mental Health Care

Suicidal thoughts can be experienced by anyone and are a serious mental health concern. If you or someone you know is struggling, reach out. Help is available, and TRICARE is here to support you.

Sept. 3, 2024

Unlock Your Health With Patient Advocates and Beneficiary Counseling and Assistance Coordinators

Did you know that military hospitals and clinics come with a support staff of people who can help you navigate the healthcare process? These include patient advocates and Beneficiary Counseling and Assistance Coordinators. You can find them at any military hospital or clinic.

Aug. 30, 2024

Know How TRICARE Regions Are Changing in 2025

On Jan. 1, 2025, there will be changes to the TRICARE regions in the United States as part of TRICARE's new regional contracts. While there will still be two TRICARE regions, six states currently in the East Region (Arkansas, Illinois, Louisiana, Oklahoma, Texas, Wisconsin) will move to the West Region.

Aug. 28, 2024

Learn How To Get Your TRICARE Vaccines Overseas

Flu season is right around the corner—which means it’s time to start thinking about getting vaccines for common respiratory diseases. If you live or travel overseas, it’s important to know where you can get these vaccines.

Aug. 22, 2024

Your Guide to TRICARE Pharmacy Program Terms

Do you have a new prescription you need to fill? Or maybe you’ve been taking the same drug for years. Knowing these TRICARE Pharmacy Program terms can help you get the medications you need at the right price.  

Aug. 20, 2024

TRICARE How-To: Filing Claims and Reimbursements

Have you ever had to get care while traveling? Or maybe you’ve had to visit a non-network TRICARE-authorized provider who doesn’t “participate.” In these situations—and some others—you might need to file a claim with TRICARE to get reimbursed.