Marilyn was turned in by people that rescued her from a situation where she was not being cared of.  They were treating her for flea allergies and she had demodectic mange :(  Demodex is not contagious to people or other animals but is genetic.  She was in horrible shape and had no hair.  We were not sure what breed she actually was but now that her hair is coming back in she is looking more Chihuahua/Crested mix.  She still needs to undergo treatment until she has 2 negative skin scrapings which will most likely take a few months.  She is doing much better and is actually coming out of her shell now that she feels better :)