Early in the pandemic, the message from governments of all levels was crystal clear: If you have symptoms, get a PCR test. While that still largely holds true, rules about who should get tested and ...

We are inching close to 2022 and with festivities around the corner, the rise in COVID-19 cases is concerning. It’s important to keep getting tested when you have symptoms, have been exposed to the ...

With Christmas nearly here and COVID-19 case numbers rising, it's important to keep getting tested when you have symptoms, have been exposed to the virus, or are going to a high-risk environment. Now ...

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 ...

Molecular tests are far superior to rapid antigen tests—and now you can get them for home use. Last week, I was about to go on a date, and because I'm severely immunocompromised, we agreed he would ...

As thousands wait in long queues for the PCR Q-tip ahead of Christmas, many are turning to the 15-minute rapid antigen tests sold over the counter. PCR tests are still considered “the gold standard” ...

PCR is an abbreviation for Polymerase Chain Reaction that is used to detect the genetic material from a specific organism. This molecular test is capable of detecting the virus fragments. By looking ...

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 ...

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.

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 ...