While they've been the gold standard to identify positive coronavirus cases around the world for more than a year, PCR tests still aren't trusted by some social media users. An Oct. 4 Instagram post ...

Now, you’d likely use an at-home test, which spits out results in just 15 minutes. It’s easier, faster, and reliable, even ...

A polymerase chain reaction (PCR) test detects genetic material from a pathogen or abnormal cell sample. Ways of collecting samples include a nasal swab, a saliva swab, or taking a sample of blood.

Early in the pandemic, when someone walked into a clinic with a possible case of COVID-19, a nurse or doctor would stick a long swab up their nose to take a sample. They would then ship it to a ...