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 ...

A PCR test is often considered the gold standard for detecting coronavirus infection. It’s the test some employers want employees to take before returning to work after having Covid-19, and the one ...

Jan 10 (Reuters) - The fast-spreading Omicron variant has made us more reliant on rapid at-home antigen tests to tell us if we have COVID-19. But should we be swabbing our throats as well as our noses ...

When should you do a lateral flow test and when to take a PCR? As Coronavirus numbers rise in Scotland, you might want to make sure you aren't positive and at risk of passing it on to your loved ones, ...

Lateral flow tests (LFTs) are widely used across healthcare, food safety and environmental monitoring, providing rapid, on-site results. But challenges with sensitivity, flexibility and usability ...

Rapid COVID tests are convenient and easy to use because you can take them at home. But it's important to know how to interpret their results, when you should take another rapid test and when you ...

What does it mean if a person’s rapid antigen test result comes back positive after five days of isolation due to Covid-19? According to the experts, that person is most likely still carrying a viral ...