COVID-19 is a type of coronavirus, specifically SARS-CoV-2. It is very contagious and can spread very quickly.
COVID-19 most often causes respiratory illness that can feel much like a cold, a flu, or pneumonia. It can cause mild symptoms or more severe illness in some people. A number of diseases make a person more likely to have severe symptoms of COVID-19. This list of high-risk diseases comes from the U.S. Centers for Disease Control and Prevention (CDC).
Protect Yourself
Protect yourself against COVID-19. Get vaccinated!
Adults 65 and older who have no problems should receive a dose of the 2023-2024 updated COVID-19 vaccine (Pfizer-BioNTech, Moderna, or Novavax), followed by an additional dose at least 4 months later. None of the updated 2023-2024 COVID-19 vaccines is preferred over another.
Recommendations for older adults who have problems with their immune system (immunocompromised)
People who are moderately or severely immunocompromised may get additional doses of the updated COVID-19 vaccine. A person is immunocompromised when their immune system is weak. These people may have more trouble fighting COVID-19 and are at higher risk of getting seriously sick or dying from COVID-19.You may have a weak immune system if you have cancer, diabetes, or heart conditions, for example. These are just a few of the diseases that can make your immune system weak. Please check with your healthcare professional to see if you have a medical problem that makes your immune system weak.
If you are immunocompromised, the recommendations for the 2023-2024 updated vaccines differ depending on your previous COVID vaccination history.
| Previous COVID-19 vaccination history | Which 2023-2024 Updated Vaccine is right for you | Number of Updated Vaccine Doses to Receive | Dosing schedule |
|---|---|---|---|
| If you have never received a COVID-19 vaccine before | Moderna, Pfizer-BioNTech, or Novavax |
2-3 |
Moderna (3 doses) Doses 1 and 2: given 4 weeks apart Doses 2 and 3: given at least 4 weeks apart Pfizer-BioNTech (3 doses) Doses 1 and 2: given 3 weeks apart Doses 2 and 3: given at least 4 weeks apart Novavax (2 doses) Doses 1 and 2: given 3 weeks apart |
| If you have previously received 1 dose of the Moderna or Pfizer- BioNTech COVID-19 vaccine | Same manufacturer of your previous vaccine | 2 |
Dose 1: at least 4 weeks after the last dose (Moderna) Dose 1: at least 3 weeks after the last dose (Pfizer-BioNTech) Doses 1 and 2: given at least 4 weeks apart |
| If you have previously received 2 doses of the Moderna or Pfizer- BioNTech COVID-19 vaccine | Same manufacturer of your previous vaccines | 1 | Dose 1: at least 4 weeks after the last dose |
| If you have previously received 3 doses of the Pfizer-BioNTech or Moderna COVID-19 vaccine | Moderna, Pfizer-BioNTech, or Novavax | 1 | Dose 1: at least 8 weeks after the last dose |
| If you have previously received 1 or more doses of the Novavax or Janssen COVID-19 vaccine (including in combination with any mRNA vaccines) | Moderna, Pfizer-BioNTech, or Novavax | 1 | Dose 1: at least 8 weeks after the last dose |
NOTE: People ages 65 years and older who are moderately or severely immunocompromised should receive 1 additional dose of any 2023–2024 updated COVID-19 vaccine (Moderna, Novavax, or Pfizer-BioNTech) at least 2 months after the last dose of the 2023–2024 updated vaccine.
Getting the Vaccine
The vaccine is available at no cost to you:
- If you have Medicare, you will not have to pay to get vaccinated.
- Medicaid and private health insurance plans cover all vaccine costs.
- If you are uninsured, you can get free vaccines.
Vaccines are available at many locations:
- Most drug stores
- Community health centers
- State or local health departments
Find a COVID-19 vaccine location near you:
- Ask your doctor or healthcare provider
- Call 1-800-232-0233
- Text your zip code to 438829 or visit vaccines.gov
Other Ways to Protect Yourself
- Wear a high-quality mask or respirator. People may choose to mask at any time. Masks are recommended in indoor public transportation settings and may be required in other places by local or state authorities.
- Increase your distance. The closer you are to a greater number of people increases your exposure to COVID-19. Keeping your distance or avoiding crowds can lower that risk.
Last Updated May 2024