You don’t need personal genomics to broadly do better than simply lumping everyone in one bucket. Various ethnic/racial groups have been mostly reproductively isolated from each other for most of history, which means certain things are significantly more common in some groups than others, which means you can get more effective use of resources by targeting things like screening and prevention at groups where the disease is more likely.
Personal genomics would let you target even more closely, but using race or family history is just estimating genomics by proxy.
For example, sickle cell and black folks, or cystic fibrosis and white folks, or maple syrup urine disease and the Amish or methemoglobinemia and one family from eastern Kentucky.
You don’t need personal genomics to broadly do better than simply lumping everyone in one bucket. Various ethnic/racial groups have been mostly reproductively isolated from each other for most of history, which means certain things are significantly more common in some groups than others, which means you can get more effective use of resources by targeting things like screening and prevention at groups where the disease is more likely.
Personal genomics would let you target even more closely, but using race or family history is just estimating genomics by proxy.
For example, sickle cell and black folks, or cystic fibrosis and white folks, or maple syrup urine disease and the Amish or methemoglobinemia and one family from eastern Kentucky.