Probably this.

We are still in the early stages of this in our local area where people are playing "Six Degrees of Kevin Bacon" trying to avoid the workplaces of some guy's cousin's nephew's uncle who may or may not have tested positive and gone to the same grocery store as you three weeks ago.

All this is doing is delaying the inevitable. Unless a person holes up in his closet for the next six months and has his irradiated water and food delivered via airlock and never goes outdoors--you are going to be exposed to it at some point. Whether at the grocery store, gas station, etc you can't hide from an invisible man.