Risk index for contacts

Not every contact is equally risky. We could provide some type of index to show the level of exponation. Like 1 is: I travelled across a point where a now infected person has been but some time before me. 2 is: I were in close distance at the same time. 3 could be also an confimed bluetooth contact. Etc.

Somethin like this. There for sure has to be some more discussion about this.