It is okay to vacuum up mouse droppings as long as you have filter on the vacuum and the vacuum doesn't spread the mouse droppings around.
It's best to sweep up the mouse droppings, although vacuuming the mouse droppings is okay.
When vacuuming up mouse droppings it's best to use a vacuum with a HEPA filter.
The reason why it's not recommended to vacuum up mouse droppings is because they can lead microscopic particles of the mouse droppings with bacteria floating around in the air.
You can also clean up the mouse droppings by spraying the mouse droppings with bleach disinfectant and then while wearing gloves, wipe them up with a paper towel.
Several types of viruses can be infectious in mouse droppings for 2 to 3 days at room temperature.
But time in the sun may shorten this period, but colder temperatures may lengthen it.
Bacteria such as Salmonella can remain alive for many more days or even weeks in mouse droppings.