Re: Some illnesses and treatments are race specific
"Races exist culturally, they do not exist biologically"
A popular opinion, but there's a bit more to it. If 15 people die in a house fire the makeup and density of bones, teeth, etc can tell which part of the world those people and their ancestors originated from to a fine degree. Providing the effort to do that is not usually necessary, unless you've discovered a mummified body of an ancient king while excavating a Tesco car park.
So in some cases and with the correct funding and equipment you can tell which nationality someone was when they were alive.