Few people who have undergone nasopharyngeal swabs for
coronavirus testing would describe it as a pleasant experience. The
procedure involves sticking a long swab up the nose to collect a
sample from the back of the nose and throat, which is then analyzed
for SARS-CoV-2 RNA by the reverse-transcription polymerase chain
reaction (RT-PCR). Now, researchers reporting in ACS Nano have
developed a prototype device that non-invasively detected COVID-19
in the exhaled breath of infected patients.
