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What should I do if I think I've been exposed to COVID-19? Should I quarantine? How long do I have to stay home?

Last Updated: 07/07/2022

You may have been exposed to COVID-19 if you were in close contact (within 6 feet for 15 minutes or more over 24-hours) with someone who had COVID-19, or if you participated in a high risk activity such as attending large gatherings with people who may be unvaccinated.

Please use this tool to help determine how long quarantine is needed for

Who does NOT need to quarantine?

  • If you are 12 or older and completed a primary series of COVID-19 vaccine AND have received all recommended vaccine doses, including boosters.
  • Children 5-11 years old who completed their primary series of a COVID-19 vaccine.
  • Persons who had confirmed COVID-19 within the last 90 days.

You do not need to quarantine. But you should wear a well-fitted mask around others for 10 days and get tested at least 5 days after the exposure (recently recovered persons do not need to test).

If symptoms occur, or if you test positive, you should immediately isolate for at least 5 days after the date when symptoms began or the date of the positive test result.

Who needs to quarantine?

  • If you are 12 or older and completed a primary series of COVID-19 vaccine but have NOT received a booster shot when eligible.
  • If you have not completed a primary vaccine series.

You should stay home and quarantine for 5 days, monitor for symptoms, and get tested at least 5 days after exposure.

After ending quarantine, for 5 additional days, you should wear a mask around others, delay travel, avoid persons at high-risk for severe illness, and avoid places where you can't wear a mask.

If you are unable to wear a mask when around others, you should continue to quarantine for a full 10 days.

If symptoms occur, you should immediately isolate until a negative test confirms symptoms are not attributable to COVID-19. If you test positive for COVID-19, you should isolate for 5 days from the date of the positive test result.

Testing is widely available and open to everyone in New Jersey. Visit to find a testing location near you.

Everyone in quarantine should wear a mask, social distance from others, wash hands often, and cooperate with contact tracers if you receive a call.

Note: If you work in a healthcare setting or live in a high-risk congregate setting, you may be subject to different safety recommendations and timeframes.

Resources During Quarantine

If you are quarantined or in home isolation, do not leave your home (except to get medical care). There are many programs in place to help you and your family including food assistance, unemployment insurance, sick leave, and job protections. Learn more here.

For individuals who are self-isolating or quarantining at home, but live in large or multigenerational households where others may be at risk, the Department of Health recommends taking the following precautions:

  • For large households or homes with many people, persons who are sick should remain in a separate bedroom and stay away from anyone who is not sick as much as possible.
  • If the sick person cannot be isolated in a separate room, consider having them isolate in an alternate location that has a separate bedroom and bathroom for them to rest and recover.
  • If a family member(s) has underlying health conditions, consider having them quarantine at a nearby alternate site away from the sick individual.
  • If the sick person needs to leave the bedroom to use the bathroom (or kitchen), they should wear a mask.
  • The sick individual should not eat meals with others in the household to limit the spread of the virus within the home.
  • All persons living in the home should practice good hand hygiene (Wash hands often with soap and water or use hand sanitizer that contains at least 60% alcohol).
  • Cleaning frequently touched surfaces regularly is important especially in the bathroom as well as doorknobs and stair rails