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 ...

COVID-19 tests are in greater demand than ever, and new data about the Omicron variant can make picking and using different types of tests confusing. Molecular tests for COVID-19, like the "RT-PCR" ...

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 ...

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 ...

Testing has become a vital part of the response to the COVID-19 pandemic. In addition to the gold standard PCR tests used to detect currently infected individuals, a number of alternative antigen and ...

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 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 ...

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 ...

Editor's Note (9/29/20): This story has been updated and republished in light of the Trump administration’s newly announced plans to ship millions of antigen tests to states and vulnerable communities ...