At-home COVID-19 tests have become commonplace for many households, but knowing when exactly to take a rapid test — or when to throw old ones out — isn't always straightforward. Here's what health ...

You may get a PCR test, which can show a positive result for up to three months after recovery. If you take a rapid antigen test, it may not detect COVID after nine days, but it is more accurate for ...

New York Post may be compensated and/or receive an affiliate commission if you buy through our links. Featured pricing is subject to change. COVID-19 — it’s still a thing, which means it’s always a ...

Over the past four years, many of us have become accustomed to a swab up the nose to test for COVID-19, using at-home rapid antigen tests or the more accurate clinic-provided PCR tests with a longer ...

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 ...

Rapid antigen diagnostic tests for the novel coronavirus will be a game changer in the fight against the pandemic, the Pan American Health Organization's (PAHO) director Carissa Etienne said on ...