At this point in the pandemic, you or someone you know has probably received at least one COVID-19 test. But do you know which kind of test you got and the strengths and weaknesses of these different ...

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 ...

As the various subvariants of omicron continue to circulate in the U.S., rapid at-home tests remain an important tool for protecting yourself and others. Home tests are appealing because they allow ...

The antigen test uses a novel fluorescent probe for optical detection on the chip. This illustration shows the full antigen-capture complex assembled as a sandwich assay on a magnetic bead; a linker ...

When used correctly, many rapid antigen tests are good at detecting people carrying high levels of the virus. By Emily Anthes In the early months of the pandemic, getting a coronavirus test typically ...

The announcement came last week with the White House signaling a billion-dollar investment in at-home rapid coronavirus tests. It also said 20,000 pharmacies across the country would offer free ...

The COVID-19 pandemic continues to rage, with more than five million deaths worldwide. The urgent, global nature of the pandemic has led to great innovation with novel vaccines and diagnostics, ...