A positive PCR test has implications for both that individual and their close contacts. Here’s what happens in each case.

1. I have no symptoms of COVID-19. 
Isolate for at least 5 full days after the first positive test. Then wear a well-fitting mask at all times around others for an additional 5 days.

2. I have symptoms of COVID-19.
Isolate for at least 5 full days after symptom onset and until fever free for at least 24 hours. Then wear a well-fitting mask at all times around others for an additional 5 days.

NOTE: The CDC is not suggesting that you need proof of a negative test to re-enter the general population if you've had a positive swab.

3. I am a close contact, and I am:
a. Fully vaccinated and boosted, if eligible or tested positive for COVID-19 within the last 90 days: No quarantine necessary. Get tested at least 5 days post exposure or if symptoms develop; self-monitor daily for symptoms through Day 10.
b. Unvaccinated or vaccinated but not up to date on COVID-19 vaccination including booster: Quarantine for at least 5 full days from last potential exposure; Get tested 5 days post exposure or if symptoms develop; self-monitor daily for symptoms through Day 10.

4. How long will I have to isolate after a positive test?
At least 5 days. If you are:
a. Asymptomatic: Isolate for 5 days after the first positive test. Then wear a well-fitting mask at all times around others for another 5 days, 
b.Symptomatic: Isolate for at least 5 days after symptom onset or until you have been fever free for at least 24 hours, whichever is longer. Then wear a well-fitting mask at all times around others for another 5 days.
NOTE: The CDC is not suggesting that you need proof of a negative test to re-enter the general population if you've had a positive swab.

5. FULLY VACCINATED THEN EXPOSED TO A POSITIVE COVID INDIVIDUAL should mask while around others for 10 days. 
NOTES. 1. No retesting of any individual after a positive test (athletes may be the exception subject to NCAA regulations).