The first litter that I ever had, when they were about 8 weeks, all came down with Demo mostly on their faces. There are 2 types of Demo. Localized is usually small patches usually on the head and face and sometimes a little on the feet. Generalized is large areas not limited to the face but can materialize on any part of the body and can be large areas. The vet said that the mites are always there and are kept in control by the body's natural defense system... In times of extreme stress (like changing puppies from the house to a kennel) sometimes puppies will develop a little (as they call it) puppy mange. The vet said that there were 2 schools of thought to their delima... One, do not treat it to see if it will go away on its own......Two, Treat it to not further tax the puppy's immune system but you will never know if the immune system would have solved the problem on its own. So I treated all of them (9) and they all cleared up and never had that problem again (I followed them thru life).One female however, cleared up with the rest and then came back as generalized Demo. She was dipped often but it kept coming back. At about 2 years of age she succumed to a bacterial infection due to an immune system that was too weak.. Never had another puppy that did that again.... Hopes this helps.. Patty J. In a message dated 9/3/2009 4:34:19 P.M. Eastern Daylight Time, spotted101@xxxxxxxxxxx writes: Everything I have ever read and including several vets have suggested that Demo mites (any mites for that matter) become a problem for the animal because the immune system cannot fight back - when normally it keeps the mites under control. Compromised immune systems happen for a variety of reasons - underlying health problem, stress and........ TADA.... GENETICS!!! Yup, some dogs (and people) are not born with healthy immune systems - hence health problems in many cases and mites do apply... Jessica MacMillan Paisley Dals (www.paisleydals.com) & The Shepherd Girls (Simmie, CGC, TDI, TC, HIC & Pepper, HIC) Member of: DCA, GSDCA & GTCDC _________________________________________________________________ Get back to school stuff for them and cashback for you. http://www.bing.com/cashback?form=MSHYCB&publ=WLHMTAG&crea=TEXT_MSHYCB_BackT oSchool_Cashback_BTSCashback_1x1 ============================================================================ POST is Copyrighted 2008. All material remains the property of the original author and of GSD Communication, Inc. NO REPRODUCTIONS or FORWARDS of any kind are permitted without prior permission of the original author AND of the Showgsd-l Management. ALL RIGHTS RESERVED. ALL PERSONS ARE ON NOTICE THAT THE FORWARDING, REPRODUCTION OR USE IN ANY MANNER OF ANY MATERIAL WHICH APPEARS ON SHOWGSD-L WITHOUT THE EXPRESS PERMISSION OF ALL PARTIES TO THE POST AND THE LIST MANAGEMENT IS EXPRESSLY FORBIDDEN, AND IS A VIOLATION OF LAW. VIOLATORS OF THIS PROHIBITION WILL BE PROSECUTED. For assistance, please contact the List Management at admin@xxxxxxxxxxxx VISIT OUR WEBSITE - http://showgsd.org NATIONAL BLOG - http://gsdnational.blogspot.com/ ============================================================================ ============================================================================ POST is Copyrighted 2008. All material remains the property of the original author and of GSD Communication, Inc. NO REPRODUCTIONS or FORWARDS of any kind are permitted without prior permission of the original author AND of the Showgsd-l Management. ALL RIGHTS RESERVED. ALL PERSONS ARE ON NOTICE THAT THE FORWARDING, REPRODUCTION OR USE IN ANY MANNER OF ANY MATERIAL WHICH APPEARS ON SHOWGSD-L WITHOUT THE EXPRESS PERMISSION OF ALL PARTIES TO THE POST AND THE LIST MANAGEMENT IS EXPRESSLY FORBIDDEN, AND IS A VIOLATION OF LAW. VIOLATORS OF THIS PROHIBITION WILL BE PROSECUTED. For assistance, please contact the List Management at admin@xxxxxxxxxxxx VISIT OUR WEBSITE - http://showgsd.org NATIONAL BLOG - http://gsdnational.blogspot.com/ ============================================================================