Le News
Coronavirus: negative tests don’t always mean you don’t have it
Sat, 04 Apr 2020 16:23:00 +0000

The most common test for Covid-19 involves inserting a swab up through the nose to collect mucus from the back of the throat next to the nasal cavity. The resulting mucus sample is then analysed to find traces of viral RNA specific to Covid-19, a process known as reverse transcription polymerase...