I seem to recall hearing/seeing stories about complete shut-ins that live alone, who are almost never exposed to anyone else, getting COVID-19. I think those stories were why we saw the theory (and made-up info that they later reversed) from "scientists" that it could be living for a long time on surfaces.

Pretty sure there were threads on GLP about it.

In my mind, those stories (if true) reinforce my belief that this illness is being delivered through some vector other than person-to-person.