I’ve been exposed to (a close contact of) someone with COVID-19. Do I need to quarantine and for how long?

Regardless of your vaccination status, following an exposure (close contact) you should:

  • Wear a mask around others for 10 days starting with your last contact (the day of your most recent close contact is day 0), and
  • Get tested (rapid antigen test or PCR) 5 days after your last contact if possible, and at any point if you develop symptoms.

You do not need to quarantine if:

  • You are fully vaccinated and boosted.
  • You received one dose of Johnson & Johnson or two doses of Pfizer or Moderna and are not yet eligible for a booster.
  • You tested positive for COVID-19 within the previous 90 days.
    • You should still wear a mask for 10 days and get a test at any point if you develop symptoms.

You should quarantine for at least 5 days starting with your last contact if:

  • You have not received a booster but you are eligible.
  • You are not fully vaccinated.

If you develop symptoms of COVID-19 you should get tested and isolate immediately regardless of your vaccination status or whether you previously tested positive. If you have symptoms and your test result is negative on an antigen test, you should seek a PCR test and consult a health care provider before returning to work or class.

For more information about quarantine and isolation, including information for students in residence halls, visit: uhs.wisc.edu/medical/covid19-isolation-quarantine/