I had an eu hybrid Jill. Hard little critter on the rabbits, but not so Health-wise. When she went to be spayed because of suspected pyometra, they found her bladder was full, with a bladder stone and she passed away, under the anaesthetic....
That's a shame! How old was she?
The other two ferrets on the picture are two EU Hybrids too. My experience with them is that they are much tougher than the albino ferrets, healthwise too.
Think she was only just over a year old