In order for a virus like the COVID-19 virus to be detected early in the body using real time RT–PCR, scientists need to convert the RNA to DNA. This is a process called ‘reverse transcription’. They ...

And how do you know if what you're experiencing is ... and our rundown of what to know about at-home tests that detect COVID and flu. Not really, according to Dr. Amesh Adalja, an expert in ...

Around 5%–10% of people with COVID infections go on to experience long COVID, with symptoms lasting three months or more.

Vocal patient advocates and researchers argue that certain drugs could help long COVID sufferers via off-label use. Some have ...