Disgusting question... I stepped in human bodily waste (excrement) today with my leather-soled Strands. Middle of the sidewalk, on the street, didn't see it. Wash or replace the soles? They're otherwise fresh soles... I obviously washed them already. It bothers me, but I'm cheap... I suspect there may be a legitimate hygiene/disease concern...?
The real unanswered question here: how do you know it was human poo?
I would recommend thinking twice about your diet if you can't smell the difference between animal and your own/human poo.