First off....YAY for Franklin's homecoming!!!!!
Sooo happy he is alright! It sounds like you are taking all the appropriate measures to disinfect all areas of you home. I know what you mean by saying he has been everywhere in the house so I think you're doing a great job of cleaning all his personal stuff and mopping the floors. I would just go on a major spring cleaning effort and dust, mop, sweep, and disinfect everything. Good luck!