RE:RAPID TESTINGI believe they are currently focused just on the PCR testing. The rapid tests are not very accurate where as PCR testing is 99.99 percent accurate.
Researchers found that for those showing symptoms, rapid tests were right 80% of the time. That number is down from the reported 96.7% when the FDA gave emergency use authorization back in May. In those not showing symptoms, accuracy dropped to just 41.2%. There can be false positives and false negatives too.5 days ago
Reliability of rapid results
Although there are expensive and often exclusive quick tests whose results can be available in hours, PCR (polymerase chain reaction) tests, the kind required for most travel certification, are generally not rapid results.
"These tests detect disease by looking for traces of the virus' genetic material on a sample most often collected via a nose or throat swab. The Centers for Disease Control and Prevention (CDC) considers the PCR test the "gold standard' of Covid-19 testing,"