If a dog is not OFA health tested, assume a dog has an inheritable disease. It is that common among dogs. The only way to know if a dog is free from inheritable diseases is by testing for them. "Vet Checked" is not health testing. The ONLY way to have the best chance at breeding healthy dogs is to make sure we're only breeding OFA CHIC certified dogs.
Recommended Health Tests from the Italian Greyhound Club of America:
A full DNA Panel through UC Davis