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 ...

Scientists and public health experts built the COVID-19 pandemic response on years of experience navigating infectious disease outbreaks. Although lateral flow immunoassays have been central to ...

During the early stages of the coronavirus disease 2019 (COVID-19), rapid testing was imperative for public health policymakers and health care workers in order to determine where and what measures ...

Facing long lines and shortages of home test kits during the latest surge, people are searching for answers about Covid tests. By Tara Parker-Pope Dani Blum and Nicole Stock Testing is essential to ...

Max Hamilton found out that his roommate had been exposed to the coronavirus shortly after Thanksgiving. The dread set in, and then, so did her symptoms. Wanting to be cautious, she tested ...

Rapid COVID tests are convenient and easy to use because you can take them at home. But it's important to know how to interpret their results, when you should take another rapid test and when you ...

Lateral flow immunoassays, also called immunochromatography strips, are straightforward devices used to detect the absence or presence of a target analyte. Target analytes range from pathogens to ...