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 ...

BOSTON (CBS) - A Carlisle man tells WBZ he thought a negative rapid 15-minute Covid-19 test was all he needed to avoid quarantine after vacation. But he was not all set. While the FDA said positive ...

For instance, if you only get a very faint line, it might be hard to know whether or not that means your results are positive. I know how that feels firsthand. After more than two years of evading ...

KANSAS CITY – During the coronavirus (COVID-19) pandemic, it is not surprising to see the priorities of consumers – when it comes to the safety of their food – are higher than ever before. Even with ...

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 ...

More than two years after the World Health Organization (WHO) declared an end to the emergency phase of the Covid-19 pandemic ...

Gone are the days of visiting a doctor’s office to determine whether you have Covid. Instead, you can buy over-the-counter test kits, which diagnose infection from the comfort of your home, making ...