Why are pcr test results taking so long to come back – none:
Our average turnaround time for COVID molecular diagnostic test results continues to be approximately days. Our average positivity rate remains above The test has been run at Children's Hospital of Philadelphia's lab, and the results have come back INVALID. Please note that this is a PCR test or a lab-based. Specimens are sent to independent, third-party labs for processing. On average, test results are typically available in days, but may take longer due to the.
– Testing – Coronavirus COVID Response
Antigen tests are fast and inexpensive but less accurate. You may continue to have symptoms after leaving isolation, or get symptoms again after you have recovered because your immunity may have decreased.