We aren't having people over but do live with DH's parents who have health complications. We only share certain areas of the house and the 'mess' was contained to 'our' area, but I don't want to go tracking the germs all over, and we share laundry facilities so I don't want to go germing up the machine.
But I grew up in a germ phobic household and honestly have no idea what the 'normal' amount of concern is over this. My instinct is to kill it with fire and rebuild the house
I googled and apparently some stomach viruses can live for 12 DAYS on soft surfaces. Im not sure whether it's a good thing or not that I found that out :/