Like PCR tests, antigen tests usually require a nose or throat swab. But unlike PCR tests, which look for genetic material from the SARS-CoV-2 virus, antigen tests look for proteins that live on ...

PCR tests work best to identify an active infection, unlike antibody tests, which can tell if you've been infected in the past. Fact check: No, the CDC didn't warn of a polio-like disease outbreak ...

If people need to get tested regularly, the rapid test is the best method because of the time required to process a PCR sample. Contact reporter Craig Lyons at 517-377-1047 or calyons@lsj.com ...

Polymerase chain reaction (PCR) and rapid (antigen) tests for COVID-19 both involve taking a swab. Results for a PCR test take longer, as it needs to go to a laboratory.

Timely and reliable testing is essential to prevent surges in new Covid-19 cases. Nasal swab RT-PCR testing is most commonly used for diagnosing the air-borne disease, all thanks to its precise ...

When should you get a PCR swab instead of a rapid antigen test for COVID-19? Topic: COVID-19. Mon 3 Jan 2022 Monday 3 January 2022 Mon 3 Jan 2022 at 4:58am.