How dangerous are the following bacteria?

[zachg18]

-Staphylococcus sciuri

-Paenibacillus glucanolyticus

-Bacillus circulans

In relation to humans, of course.

My understanding is that P. glucanolyticus is just a type of Bacillus circulans, but I'm no expert so I may be wrong. Just been doing a bit of reading.

Also, in what amounts would these have to be found to be harmful? Or does that not even matter?

I read something about Staphylococcus sciuri being harmful if there are over 100,000 CFU/mL, but not sure if that makes sense.

I really appreciate any help with this.

Thanks!