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 ...

The explosion of omicron cases in the U.S. smack in the middle of the holiday season is forcing Americans to rely more heavily on rapid tests prior to congregating with friends and family. In some ...

Polymerase chain reaction (PCR) tests were the first available for spotting the coronavirus. They work by detecting the virus’s genetic material, and are very accurate. Then came rapid tests, also ...

In a recent review published in Nature Reviews Bioengineering, researchers assessed the changing landscape of lateral flow tests (LFTs), and the development of next-generation LFTs based on lessons ...

A common rapid at-home COVID test has become the subject of a recent product recall over concerns the antigen test hasn't received proper U.S. authorization. The Food and Drug Administration issued a ...

As the omicron variant continues to sweep the United States, the FDA is being urged to gather more information about how well at-home Covid tests are able to detect the modified virus. Mounting ...

For many years, PCR has been the go-to method for detecting specific DNA and RNA sequences. However, its requirement for specialized thermal cyclers limits its use for rapid, on-site testing. In ...