fading puppy syndrome

I had a cavalier king charles spaniel puppy just die recently. He was properly vaccinated, parents had all of the correct health requirements, and he had a vet check just a few days before with my vet and was perfectly fine. On Thursday morning, I let him out to go potty and he was energetic...

We are considering purchasing a 5 week old female chocolate lab puppy that has survived Fading Puppy Syndrome. According the to breeder, the puppies began fading 2-3 days after birth. 3 male puppies died before they could get the litter to the vet. The vet gave antibiotics and advised the...