What about germs not known to be harmful or beneficial?

@MartinRandall this question only includes pathogens, which are by definition harmful. If it was generally harmful in the wild but now it only exists in a beneficial use case, like using certain worms to treat ulcerative colitis, then it no longer counts as a pathogen.

Is this market conditional on Humanity not being extinct?

@ElliotDavies It's a conjunction, not a conditional. If humanity is extinct this resolves NO.