One well known cause of autoimmune hemolytic anemia are vaccines. Was the dog
vaccinated recently? I don't have any suggestions for treatment only the
cause. Sorry...
Barbara
PS. You can google the <vaccines autoimmune hemolytic anemia> and you will
find lots of entries.
I don't know the cause... he doesn't have cancer or anything anyone can
point to as the cause... is this possibly a virus or a chemical exposure of
some sort? Some have said a tick bite can do it ... titer for that proved
negative.
Bob Banever