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 ...

Add Yahoo as a preferred source to see more of our stories on Google. (Photo: golero via Getty Images) For many of us, the 2021 holiday season hasn’t gone quite like we’d hoped on the COVID front. Yes ...

University of Alberta-led research reports that new cases of syphilis dropped in Alberta following the introduction of rapid point-of-care testing and same-day treatment. The research team compared ...

Rapid at-home Covid-19 tests are flying off store shelves across the country and are largely sold out online as the delta variant of the coronavirus complicates a return to school, work and travel ...

During the COVID-19 pandemic, at-home tests became standard operating procedure for many households. In just 15 minutes, with a quick swab and a stir, we felt more confident visiting elderly family ...

California, Connecticut and New York are among the states sending millions of rapid antigen tests to schools and families ahead of January reopening. Washington, D.C. and Baltimore schools are ...

Testing may help outpatient clinicians better manage lower respiratory tract infections ...