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 ...

Polymerase chain reaction (PCR) is a fundamental molecular biology tool that scientists use to amplify and analyze genetic material, such as DNA and RNA. PCR involves the enzymatic amplification of ...

New COVID-19 restrictions for international travel and other activities are fueling consumer demand for highly accurate polymerase chain reaction, or PCR, tests with rapid turnaround times. Some ...

Two types of COVID-19 tests, the rapid antigen test and the polymerase chain reaction (PCR) test, are available in the United States. The PCR typically relies on lab testing and is still considered ...

GLENS FALLS, N.Y. (NEWS10) — With a rise in COVID cases continuing and more people looking to get tested, there are some key differences between the two types of tests that detect the coronavirus: PCR ...

COLUMBUS, Ohio — You've heard a lot of talk about genomic sequencing: It's the process used in labs to detect variants of COVID-19 from PCR test samples. Some social media users falsely claim it's ...