First I have heard of this. Guy supposedly steals a nasal swab and discovers a chip embedded in the end of it.
https://twitter.com/FillUpOnTacos/status/1334622216818995201/photo/1
I'm sure it would take a special detector to trace the Technetium introduced to the body. So it looks like more of a way of doing contact tracing to me. They would know at least who had already been tested.
Fuckers.