disinfect the house just because a mouse was inside it? Mice are not biohazard disease bags, as long as you don't eat their feces you'll be fine.
I believe you can get the hantavirus from mice...
You can get rid of a mouse once they been in your house by calling a pest patrol or put mouse traps around some places in your house, but don't put it around where you could step on.
Mice are very curious. Just set out a tin cat with no board inside & you can catch it alive & dump it outside. Just set along wall or where droppings found.