If you are up to date on your COVID-19 vaccinations, including a booster shot, if eligible, or if you have had a positive test for COVID-19 in the last 90 days, CDC guidelines do not require you to quarantine, but you should be tested at least 5 days following the date of your exposure and monitor yourself for symptoms for 10 days. If you develop symptoms, you should self-isolate and be tested as soon as possible.
If you are not vaccinated or are not up to date on your COVID-19 vaccinations, including a booster shot, if eligible, you must self-isolate for a full five days and then test. Even if you are negative, you should continue to wear a well-fitting mask around others at all times for another five full days..
While you are quarantining, you must actively monitor yourself for symptoms and take your temperature at least once every day. You must continue this self-monitoring for a full 10 days from the date of your possible exposure to the virus, even after your 5-day quarantine has ended. If you develop even mild symptoms, you must immediately self-isolate and contact MIT’s contact-tracing team to arrange testing.
Unless you develop symptoms, you do not need to be tested during the quarantine period. However, if you want to be tested, MIT’s contact tracers will work with you to schedule your test.
January 11, 2022