1 Multiple sclerosis (MS) is a disease that causes demyelination (disruption of the myelin that insulates and protects nerve cells) of spinal nerve and brain cells.  Although the exact case is unknown, multiple sclerosis is considered to be an autoimmune disease.
The skunk is not a rodent. They belong to the family Mephitidae and the order Carnivora which does not include rodentia. They are sometimes placed in the family Mustelidae (weasels) but have been discovered to be less related than was thought.
Occasional skunk sightings in a neighborhood are not a cause for alarm. Because skunks are generally easy-going, they will not intentionally bother people. In fact, skunks may benefit humans by eating many insects and rodents many regard as pests.