When the coronavirus pandemic first took hold, trying to get a COVID test was like trying to get Glastonbury tickets. Hard to come by is an understatement. But now, well over a year on, a key part of ...

Polymerase chain reaction (PCR) tests were the first available for spotting the coronavirus. They work by detecting the virus’s genetic material, and are very accurate. Then came rapid tests, also ...

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 ...

Lateral flow tests (LFTs) are widely used across healthcare, food safety and environmental monitoring, providing rapid, on-site results. But challenges with sensitivity, flexibility and usability ...

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 ...

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 ...

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 ...

Countries emerging from COVID-19 lockdowns face a thorny dilemma. People are desperate to return to their workplaces and schools, but resuming public life also risks a catastrophic resurgence of the ...