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 ...

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 ...

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 ...

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" ...

People with diabetes have been urged to take extra caution during the COVID-19 pandemic. If you have diabetes, you’ve likely heard that COVID-19 is generally considered to be more dangerous for people ...

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 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 ...

Cities and states across the country are looking to expand coronavirus testing as part of efforts to emerge from lockdowns, but two major barriers remain: how to screen huge parts of the population ...