Interesting, it's sort of an inverse desire path[1] - instead of locating where foot traffic is the highest, you locate where microbe traffic is the lowest. [1

Interesting, it's sort of an inverse desire path[1] - instead of locating where foot traffic is the highest, you locate where microbe traffic is the lowest. [1] https://en.wikipedia.org/wiki/Desire_path https://en.wikipedia.org/wiki/Desire_path