For any American wondering if they have Covid-19, there are two kinds of tests available: polymerase chain reaction (PCR) and rapid antigen (sometimes just called “rapid tests”). The two tests work in ...

In a recent study posted to the Lancet preprint* server, researchers assessed the utility of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) rapid antigen testing (RAT) for patient triage ...

Assuming you can get your hands on a COVID-19 home test kit — they’ve been in high demand, thanks to the omicron variant — you probably have questions. Am I testing too early or late? Is this brand or ...

Molecular tests are far superior to rapid antigen tests—and now you can get them for home use. Amanda Blum is a freelancer who writes about smart home technology, gardening, and food preservation.

This decision, well within current norms for care, was nonetheless consequential: The president was forced to cancel a trip to advocate for legislation in support of the domestic semiconductor ...

BALTIMORE (WJZ) -- A new study by Johns Hopkins Medicine suggests rapid antigen testing is comparable in accuracy to PCR testing in children. Over a 7-month study in 2021, 1054 patients under the age ...

Corrections & Clarifications: An earlier version of this column incorrectly noted the number of at-home testing kits the federal government is planning to mail to homes. At-home COVID-19 tests are ...