Additional COVID-19 vaccine doses can improve protection against COVID-19 for older adults, those with certain medical conditions, and other groups at higher risk.
Booster doses of Johnson & Johnson vaccine have not yet been approved by the FDA and the CDC's advisory council on immunizations (ACIP).
Pfizer Vaccine Boosters
A single booster dose of Pfizer COVID-19 vaccine is recommended for certain groups who have already received two doses of Pfizer vaccine at least 6 months ago.
- Adults aged 65 years and older
- Long-term care facility residents
- Adults aged 18 and older with certain underlying medical conditions (see below)
- Adults aged 18 and older in certain occupations that increase their risk of exposure:
- First responders (healthcare workers, firefighters, police, congregate care staff)
- Education staff (teachers, support staff, daycare workers)
- Food and agriculture workers
- Manufacturing workers
- Corrections workers
- U.S. Postal Service workers
- Public transit workers
- Grocery store workers
Getting a Booster Dose
- Check with your doctor, a pharmacy, or other vaccination provider about getting a COVID-19 booster dose. Find a vaccination provider »
- Booster doses are also available at county health departments. Use the online scheduler below, or call the Mississippi COVID-19 Hotline at 877-978-6453 for assistance.
Underlying Medical Conditions
Underlying medical conditions qualifying for a booster dose:
- Chronic kidney disease
- Chronic lung diseases (COPD, asthma, etc.)
- Dementia or other neurological conditions
- Diabetes (type 1 or 2)
- Down syndrome
- Heart conditions (such as heart failure, coronary artery disease, or cardiomyopathies)
- Liver disease
- Overweight, obesity or severe obesity (body mass index (BMI) over 25 kg/m2)
- Sickle cell disease or thalassemia
- Smoking (current or former)
- Substance abuse disorders
- Other medical conditions determined by a medical provider
Third Vaccine Doses
A third dose of COVID-19 vaccine can provide added protection if you have a medical condition that affects your immune system and you are at high risk for developing more serious illness from COVID-19.
Third vaccine doses are available only for those who received Moderna or Pfizer vaccine, and whose last shot was at least 4 weeks ago.
You qualify for a third dose of Moderna or Pfizer vaccine if you:
- Have been receiving active cancer treatment for tumors or cancers of the blood
- Received an organ transplant and are taking medicine to suppress the immune system
- Received a stem cell transplant within the last 2 years or are taking medicine to suppress the immune system
- Have moderate or severe primary immunodeficiency (such as DiGeorge syndrome, Wiskott-Aldrich syndrome)
- Have advanced or untreated HIV infection
- Are receiving active treatment with high-dose steroids or other drugs that may suppress your immune response
- Have any other medical condition that your provider says will limit your immune response
Getting a Third Dose
You can schedule an additional vaccination dose at a county health department or through your doctor or regular health care provider.
- Schedule a third dose appointment at a county health department
You'll be asked questions about qualifying for additional vaccination and be able to select a county health department for an appointment.
- Consult your doctor or a health care provider. They can evaluate your health status and determine whether you need an additional vaccination dose. If you do, they will provide the vaccination.