T.W.
If I want to disinfect my wood floors I add PineSol with my regular cleaner. It is pretty harsh but I have not had a problem with my floors in the 10 years I have been doing it. If you need to just spot clean I actually take disinfecting wipes and treat single areas.
I wouldn't use these techniques all the time but once and a while when needed it is fine. I wouldn't use bleach though, it will alter the color, break down the finish, etc.
Good luck!