Take a look at canine herpes.
Evan
http://gsdnational.blogspot.com/
http://www.dogshowjuniors.com/GSYRFindex.asp
http://asgardgermanshepherd.com/
In a message dated 10/5/2016 10:54:24 A.M. Pacific Daylight Time,
sophoclesajax@xxxxxxxxx writes:
I was asked if this is common, normal for a litter of 4 out of 5 puppies
to have died & "doesn't that reflect badly on the breeder"?
