If a previously infected person has clinically recovered but later develops symptoms consistent with COVID-19, should the person be isolated again and tested for SARS-CoV-2?

Persons who develop new symptoms consistent with COVID-19 more than 3 months after the date of symptom onset of the most recent illness episode should be retested. Persons with recurrent symptoms after the first 3 months who test positive should be considered infectious and remain isolated until they again meet the criteria for discontinuation of isolation or of transmission-based precautions. Contact tracing during the person’s second period of symptoms is warranted. For persons who develop new symptoms consistent with COVID-19 during the first 3 months since the date of symptom onset of the most recent illness episode, retesting may be warranted if alternative etiologies for the illness cannot be identified. If reinfection is suspected, repeat isolation and contact tracing may be needed. The determination of whether a patient with a subsequently positive test is contagious to others should be made on a case-by-case basis, in consultation with infectious diseases specialists and public health authorities, after review of available information (e.g., medical history, time from an initial positive test, RT-PCR Ct values, and presence of COVID-19 signs or symptoms).

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1. What should I do if I was potentially exposed outside of the workplace?
2. What should I do if I was potentially exposed in the workplace?
3. When should I be quarantined or isolated for 14 days?
4. If I am quarantined, am I expected to work remotely?
5. Do I need a doctor's note to return to work after quarantine?
6. What should I do if I am not sick but have been in the proximity of someone who is under self-quarantine (i.e., the person was asked to self-quarantine because a potential exposure)?
7. If a previously infected person has clinically recovered but later develops symptoms consistent with COVID-19, should the person be isolated again and tested for SARS-CoV-2?
8. If an infected person has clinically recovered and then later identified as a contact of a new case, do they need to be quarantined?
9. If an infected person has clinically recovered, using the symptom-based strategy, do they need a test to show they are not infectious?
10. If an infected person has clinically recovered, should the person continue to wear a cloth face covering in public?
11. Similarities and Differences between Flu and COVID-19
12. Can people who recover from COVID-19 be re-infected with SARS-CoV-2
13. If a person recovered and four weeks later through contact tracing, tested positive again, are they infectious to others or do they need to be in isolation?