German Shepherd dog

 What is it in particular that you want to know. This is a very serious, and life threatening infection. It could be caused by a variety of organisms and it is critical that this be identified if at all possible. Normal treatment would include anti-biotics of course. One would hope the dog was seen early on for this and hope too that there will not be complications.

Granulomatous meningoencephalomyelitis is the real name of the disease and you can read more about it on a variety of sites, including:

http://www.merckvetmanual.com/mvm/index.jsp?cfile=htm/bc/101600.htm

 A bacterial infection could have been picked up in many places, not just directly from another dog. But again, the vets should be able to tell what the etiology is...and that makes all the difference in treatment. Depending on the severity of infection, how long the dog had it before treatment, the health of the dog etc., it may or may not have problems after successful treatment. Like with humans, the dog may do really fine and have no continuing problems, or have subtle problems, or have some serious problem. Only time will tell. Hopefully your friend has the dog under the care of a competent vet.