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 ...

While they've been the gold standard to identify positive coronavirus cases around the world for more than a year, PCR tests still aren't trusted by some social media users. An Oct. 4 Instagram post ...

A polymerase chain reaction (PCR) test detects genetic material from a pathogen or abnormal cell sample. Ways of collecting samples include a nasal swab, a saliva swab, or taking a sample of blood.

Thea van de Mortel teaches into the graduate Infection Prevention and Control program at Griffith University. With Christmas around the corner and COVID-19 case numbers rising, it’s important to keep ...

The first challenge with rapid at-home self tests for COVID-19 is getting one. But once you have a test, there are now growing questions about what body part you should swab to get the most accurate ...

NEW HYDE PARK, Long Island (WABC) -- New York state's largest hospital system is rolling out a new COVID test that could be a game changer. The new process will allow 10 times more testing at one ...

Johns Hopkins researchers developed microdevices known as "theragrippers" that were designed to "latch onto intestinal mucosa and release drugs into the body" over an extended period of time. But they ...

RALEIGH, N.C. (WTVD) -- It's a question some scientists are taking a deeper look at: Nose or throat -- what is the best way to do a COVID-19 test? A woman says she swabbed both her nose and throat and ...

Northwell Health is betting a new COVID-19 test that it says is just as accurate as more expensive — and more invasive — nasal swabs will prove popular among patients and employers. The New Hyde ...