u/ktwatson90

Let’s say there’s a pond, or a broken fountain really, with a relatively controlled environment: It isn’t regularly fed new water, except for rainfall. No animals live in it, though birds may use it. Debris from nearby trees falls in.

If a person were to spit in it, what portions of their mouth microbiome, if any, would be likely to survive and thrive there? If a person spit in the fountain every day, would the stagnant fountain microbiome adjust significantly over time? Would the water be more or less hostile to the person’s microbiome?

This is my first post on this sub, lmk if it should be made somewhere else. Thanks!