The couple had four children, but twin sons died of a genetic illness.

The child died of mitochondrial disease, a genetic degenerative illness, on March 30.

To avoid a genetic mental illness that might not have surfaced yet in a younger man, she settled on a medical doctor in his mid-30's.

Time was, he says, when all doctors treated genetic illness, though they didn't yet think of themselves as geneticists.

We don't have time for vague talk of genetic illness, and genetic testing.

The genetic illness was traced back to his mother's side.

Some people, because their families have been haunted by genetic illness for generations, know what type of lethal genes they carry.

Other genetic illnesses affect kidney function, as well.

You know this has nothing to do with genetic illness, except in the broadest interpretation of those words.

She suffers from a genetic illness and dies at a young age.