Although the words "quarantine" and "isolation" are often used interchangably, they actually mean different things in the context of public health.
One main difference is that isolation requirements are the same for everyone, regardless of vaccination status -- whereas quarantine requirements differ depending on your vaccine status.
*As of January 2022, the CDC defines eligibility for a booster shot as:
**In this context, "initial vaccinations" means that the individual has completed the primary two doses of Pfizer/Moderna or the single J&J dose.
This page was last updated on August 4, 2022.