Making the coronavirus sensor very advanced is one of the basics that will make the detection of this disease easy and fast, and therefore dealing with it in its initial stages may facilitate the process of eliminating it ... and this is what we hope to get ...
I would think about electrospray followed by some mass spectrometry or/and light scattering gas phase drag spectrometry. E.g.
Article Subtyping of the Influenza Virus by High Resolution Mass Spectrometry
It can be potential adopted to efficient clinical use. Such techniques can be run as label free, that makes them suitable for quick response to new challenges.