Medically reviewed by Kate Colby, MPHYou may get a PCR test, which can show a positive result for up to three months after recovery. If you take a rapid antigen test, it may not detect COVID after ...

The UK Government is putting increasing importance on regular testing rather than self isolation, as ministers look to avoid a full-scale lockdown. Hundreds of thousands of tests are estimated to be ...

PCR is a mainstay in diagnostics, but whether a sample is collected at a clinic or at home, such tests require sending a sample to a lab and then waiting for results. A new FDA authorized ...