Many who’ve had a nasal Covid-19 test performed on themselves have described it as feeling like that swab got as far back as their brains. If done correctly, the swab is angled parallel to the floor, ...

As the coronavirus pandemic broke out across the country, healthcare providers and scientists relied on the standard method for detecting respiratory viruses: sticking a long, swab deep into the nose ...

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 ...

An employee at Spectrum Solutions in Draper, Utah, shows tubes used in their COVID-19 saliva test kit. (George Frey/Getty Images) As the coronavirus pandemic broke out across the country, health care ...

Researchers have developed an automated method of RNA extraction from saliva samples to allow faster processing times and high test sensitivity. Saliva testing could be used as an alternative to swab ...