The potential for IgM cross-reactivity with rheumatoid factor–positive serum samples was observed in blood tests used to detect IgM SARS-CoV-2 by means of gold immunochromatographic and enzyme-linked ...

The U.S. Food and Drug Administration said on Tuesday it is alerting clinical laboratory staff and healthcare providers that false positive results can occur with COVID-19 antigen tests.

WASHINGTON, D.C. — The U.S. Food and Drug Administration (FDA) has granted marketing authorization for the Healgen Rapid Check COVID-19/Flu A&B Antigen Test. This innovative test marks a significant ...

When COVID first hit, waiting days for laboratory results from an ultrasensitive polymerase chain reaction (PCR) test was commonplace. Faster tests usable by anyone, anywhere, later became widely ...

We conducted a phase 2–3 double-blind trial to assess the efficacy and safety of nirmatrelvir–ritonavir in asymptomatic, rapid antigen test–negative adults who had been exposed to a household contact ...

Italian franchising group WM Capital said on Monday it had received a mandate from China's Xiamen Boson Biotech for the distribution in Italy of the Rapid Sars-CoV-2 Antigen Test for a quick diagnosis ...