Isolation & Quarantine Guidelines

MASKUPCOVIDThe Brookline Department of Public Health is following the Isolation and Quarantine Guidance of Centers for Disease Control and Prevention (CDC) and Massachusetts Department of Public Health (MDPH).

  1. Abigail Cook-Korosh

    MPH, Case Investigator/Epidemiologist

  2. Hang Ha Pham

    MPH, Case Investigator/Epidemiologist

Isolation and Quarantine Guidelines for the General Public

If you test positive for COVID-19 (isolate)

Everyone, regardless of vaccination status:
  • Stay home for 5 days.
  • If you have no symptoms or your symptoms are resolving after 5 days, you can leave your house.
  • Continue to wear a mask around others for 5 days.

If you have a fever, continue to stay home until your fever resolves.

If you were exposed to someone with COVID-19 (quarantine)

If you:

Have been boosted
OR
Completed the primary series of Pfizer or Moderna vaccine within the last 5 months
OR
Completed the primary series of J&J vaccine within the last 2 months


  • Wear a mask around others for 10 days.
  • Test on day 5, if possible.


If you develop symptoms get a test or stay at home.

If you:

Completed the primary series of Pfizer or Moderna vaccine over 5 months ago or are not boosted
OR
Completed the primary series of J&J vaccine over 2 months ago or are not boosted
OR
Are unvaccinated


  • Stay home for 5 days. After that continue to wear a mask around others for 5 additional days.
  • If you can't quarantine you must wear a mask for 10 days.
  • Test on day 5, if possible.

If you develop symptoms get a test or stay at home.

source: mass.gov