
hi guest,
a simple answer coming up. sarcoptic mange is a contagious mange mite, that affects dogs skin - itchiness, bald patches, hair loss are all signs. It is also carried & passed on by foxes, - hence the name.
Best way to try & avoid it is use prevevtitive measures by using routine ectoparasite control (delouse your dog)
Although your dog could still get it, so always monitor dogs for any symptoms & take to the vet if worried.
:)