Booster Shots

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On October 22nd, the Western States Scientific Safety Review Workgroup endorsed the CDC and FDA recommendations regarding booster shots for certain groups who received one of the three approved COVID-19 vaccines in the U.S. The booster shot recommendations were further expanded to include everyone age 18 and older for all three vaccines in Oregon on Nov. 20th, and then again on Dec. 9th for ages 16+ to receive a Pfizer booster if that was their initial dose.

Who Qualifies for a Booster Dose?

For those who received Pfizer as their initial series, everyone 16+ is eligible for a booster at least 6 months since their second dose. For those who received Moderna as their initial series, boosters are available to everyone 18+ after six months since their second dose. For those who received Johnson and Johnson, everyone 18+ is eligible after at least 2 months since their initial dose. Additionally, on Dec. 22nd, the Western States Scientific Safety Review Workgroup announced its support of the CDC recommendation for an mRNA vaccine (Pfizer or Moderna) over the Johnson & Johnson vaccine for boosters. The change in recommendation arose form the J&J vaccine providing less protection than the other two vaccines, while being associated with elevated risks of side effects, albeit still rare.

Additionally, Health experts strongly recommend the following groups of people get a booster
• People age 50 and older
• People age 18 and older who live in long-term care settings
• People who received the Johnson & Johnson vaccine

Does My Booster Need to be the Same as the Vaccine I Originally Received?

No. All three COVID-19 vaccines are available as a booster dose for all fully
vaccinated people who are eligible. This means people can get a booster dose at
any location that provides COVID-19 vaccines, depending on advice from their health
care provider, individual preference, availability or convenience. Furthermore, those who originally received Johnson & Johnson as their first dose only need one booster of either of the three approved vaccines, at least two months after their first dose.


For more information on Booster Shots vs. Additional Doses in Oregon click here.

For Frequently Asked Questions about Booster Shots click here.

For FAQs about the CDC recommendation regarding Johnson & Johnson click here.

For booster information from the CDC click here.