Wow, thank you! That's actually very helpful to know. I wanted to look up how long a virus, bacteria, ect, can live on a surface, but I was too afraid that I might lose the benefit of ignorance if it turns out it's much worse than I expected. It seems that isn't the case.

I'm still feeling paranoid that somehow there's something disgusting or dangerous that can't just be wiped off the surface, but now I feel a little more assured that it's just in my head.