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(Prevent) Booster Shots

What do I need to know about booster shots?  

The COVID-19 vaccines have been protecting people from severe illness and death from COVID-19. But with the Delta and Omicron variants of COVID-19 spreading, those who are eligible should now get an additional booster shot of COVID-19 vaccine for the most protection.

What is a booster shot? 

Boosters are an additional shot of vaccine to increase the strength and duration of protection. It’s especially important for adults over 50 and people with medical conditions to get a booster. Booster shots are free.

Am I eligible for a booster shot? 

Anyone 12 years and older should get a booster shot.

When should I get the booster? 

If you are eligible for the booster shot, you can receive your shot:

• 5 months after your second dose of Pfizer or Moderna (note: ages 12 – 17 can only get Pfizer)

• 2 months after one dose of J&J vaccine

What type of booster shot should I get? 

You can get the same kind of vaccine or choose a different vaccine for your booster. For example, you can get a Moderna or Pfizer booster after the J&J vaccine.

The J&J vaccine has a low risk of a serious blood clotting disorder, especially for women under age 50. The Pfizer and Moderna vaccines do not have this risk and are recommended over the J&J vaccine for initial and booster vaccination.

Where can I go to get a booster shot? 

Call your doctor's office or health care provider to see if they have available vaccination appointments.


Use Washington State's Vaccine Locator to find a vaccination site near you:


Visit a King County Vaccination site. Booster vaccinations are available now at all King County vaccination sites. You can find a list of sites at


If you have a disability and need an accommodation to get the COVID-19 vaccine booster, call 206-477-3977 or email

What additional resources are available? 

Transportation: If you need a ride to your vaccination appointment, visit (website in English only) or call 425-943-6706 (Monday through Friday, 8:30 a.m.-4 p.m). Dial 5 for interpretation.


In-home vaccination: To request an appointment for in-home vaccination, call the King County COVID-19 Call Center at 206-477-3977, 8 a.m.-7 p.m. Interpretation is available. You will be asked a few questions to confirm you are eligible.

For more info about vaccine and boosters, visit or call the King County COVID-19 Call Center at 206-477-3977, 8 a.m.-7 p.m.

More info: 

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