It is rare to be bitten by a mouse as they generally avoid contact with people. However, their feces and urine can pose a serious risk to your health. Mice are notorious for uncleanliness and spreading disease. They are known to damage wiring, which can be costly to repair or lead to fires. As well, they can devour large amounts of bird and pet food and livestock feed. The deadly Hanta Virus is spread by Deer Mice (Peromyscus maniculatus). These mice are common in rural and some suburban areas.