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COVID-19 vaccinations for individuals with certain medical conditions

Details of certain medical conditions that cause people to be at increased risk of severe illness due to COVID-19.

Table of Contents

Medical conditions

The CDC has defined the list of conditions that cause individuals to be at an increased risk of severe illness from COVID-19. 

Medical Conditions:

Learn more from CDC: COVID-19: People with Certain Medical Conditions

Vaccine and booster information

People who are moderately or severely immunocompromised are especially vulnerable to COVID-19 and may need more doses of vaccine to protect them. If you are moderately or severely immunocompromised, the CDC recommends a primary series that includes an additional vaccine dose. You can think of this as needing to get an additional booster dose.

If you fall into this category, your primary series will consist of:

  • Moderna: 3 doses
  • Pfizer: 3 doses
  • Novavax: 2 doses
  • Johnson & Johnson: 1 Johnson & Johnson dose followed by 1 additional dose of either Moderna or Pfizer

If you’re moderately or severely immunocompromised, you’re eligible for an additional vaccine dose when:

  • Moderna: It’s been at least 28 days since your 2nd dose
  • Pfizer: It’s been at least 28 days since your 2nd dose
  • Novavax: At this time, Novavax is not authorized for use as an additional dose or as a booster dose
  • Johnson & Johnson: It’s been at least 28 days since your dose of J&J (your additional dose will be either Pfizer or Moderna)

If you’re moderately or severely immunocompromised, and

  • Ages 5 through 11 years, it is recommended that you get one original Pfizer booster 3 months after your 3rd primary series dose 
  • Ages 12 through 17 years, it is recommended that you get one updated Pfizer booster 2 months after your last vaccine dose 
  • Ages 18 years and older, it is recommended that you get either one updated Pfizer booster or one updated Moderna booster 2 months after your last vaccine dose. 

You can mix and match vaccines. You do not need to get the same vaccine brand for your booster as your original COVID-19 vaccination, as long as it is age appropriate. The updated Pfizer booster vaccine can be given to people 12 years and older. Both the updated Pfizer booster vaccine and the updated Moderna booster vaccine can be given to people18 years and older.  

Use VaxFinder to find a pharmacy or other location to get your booster.

Steps to get your vaccination

You will not need copies of medical records or a note from your doctor or health care provider.

Read more about vaccine safety.

Step 1: Find a location and schedule your appointment

Use VaxFinder.mass.gov to search for a vaccine appointment near you.

Individuals without access to the internet or who are unable to schedule their appointment online can call toll free 2-1-1 or (877) 211-6277 for assistance.

Step 2: Learn how to prepare for your appointment and what you need to bring with you.

You will never be asked for a credit card number to make an appointment.

Contact

Phone

Informational and referral hotline 211

24 hours a day, 7 days a week. All calls are free and confidential. Interpreter services are available in multiple languages.

All calls are free and confidential.

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