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. It is more costly but tends to ...

Roche AG’s new test using its temperature-activated generation of signal technology is the next step in PCR evolution, Igor Kozlov, head of Reagent Research and Design at Roche Diagnostics Solutions, ...

PCR tests, also called molecular tests or nucleic acid tests, are considered the gold standard in detecting the presence of SARS-CoV-2, the virus that gives rise to COVID-19. However, they can take a ...

Over the past four years, many of us have become accustomed to a swab up the nose to test for COVID-19, using at-home rapid antigen tests or the more accurate clinic-provided PCR tests with a longer ...

SHANGHAI, May 6 (Reuters) - China is setting up thousands of permanent PCR testing stations, with 9,000 already completed in Shanghai alone, as authorities seek to "normalise" tough pandemic controls ...