The PCR test is considered the “gold standard” for COVID testing and the test is expected to be in high-demand once the Canadian border reopens.

The newly updated CDC guidelines don't require testing at the end of isolation because PCR tests can stay positive for up to 12 weeks, CDC Director Dr. Rochelle Walensky said.

When it comes to COVID-19, the perfect test unfortunately does not exist, so we must rely on a combination of approaches ...

A new testing site in Miramar opens as demand increases, but what's best to get, a rapid test or a PCR test?

Dr. Matt Binnicker, an expert in the diagnosis of infectious diseases, reviews scenarios where an at-home antigen test is a good option, and when to seek out a lab-based PCR.

There are three different ways to test for COVID-19: PCR tests, antigen tests and antibody tests. Here are the differences.

COVID-19 testing has spawned a veritable cottage industry, with medically minded entrepreneurs stepping up to meet increased demand — often charging top dollar to expedite PCR test results.

There’s a big difference between the standard at-home antigen test and a molecular (PCR or NAAT) test. Molecular tests are the ones you want when accurate testing is important. Here are four ...

The PCR test currently used to test for COVID-19 was, indeed, created for that use. It's not a vaccine in disguise.

Biondi says because the PCR test is so sensitive, we don’t typically see a false positive from it. “It’s a very sensitive test because it is looking for that actual material that the virus contains,” ...

A PCR test isn’t even required to get a prescription for the antiviral Paxlovid. It may seem paranoid to plan ahead for a possible case of Long COVID—but the odds of getting it aren’t so long.