You do not need a negative test to end your self-isolation period. If you have tested positive for COVID-19 by an LFD test or a PCR test within the last 90 days, you should not participate in this testing. If you develop symptoms of COVID-19 during this 90-day period, you should get a PCR test. You can restart routine testing again using LFD tests at our sites once 90 days have passed since your positive test (if you were symptom free) or the onset of your illness (if you were symptomatic).