On Fri, Apr 17, 2020 at 11:16:57AM +0100, Christian <cdel@xxxxxxxxxxxxx> wrote a message of 229 lines which said: > It persists on surfaces. It can be picked up off a surface and > redeposited on another surface. It is not clear if covid-19 is > mainly being transmitted due to face to face transmission, or via > infected droplets being left on surfaces. Those infections do not > reliably fall within the range of bluetooth. The PACT protocol, in its specification, mentions the issue and suggests a possible solution: a phone (or, actually, any thing that has Bluetooth and runs software) left on the surface on sensitive places (such as a shop counter), redistributing the IDs it detected.
