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 ...

Antigen tests can identify the presence of antigens within the body, which are substances that cause immune responses, such as the release of antibodies. The immune system, and antibodies specifically ...

With at-home testing demand soaring for the holidays, some are wondering which tests are best for detecting the new omicron variant surging across the country. Some doctors, including Dr. Anthony ...

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 ...

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 ...

In the age of COVID-19, as multiple variants have spread across the world, at-home tests have become tantamount to a saving grace for many individuals and families still grappling with the virus. The ...

As rapid coronavirus tests are becoming more widely available, delivering results in minutes for patients in doctor's offices, nursing homes, schools and even the White House, officials warn of a ...

The new findings are from an ongoing U.S. study that began in October and was designed to assess the performance of rapid antigen tests in asymptomatic people. By Emily Anthes Several rapid antigen ...