Elven girl w/bong is an even more relevant example
Blood type of Chinese people
Type O
Type O blood is considered to be the best blood type in China because it is the most common. In an emergency, type O blood can be given because it most likely to be accepted by all blood types. That's why a person with type O blood is said to be a universal donor.
My query was 'what blood type are chinese people?' to get that answer.
…not talkin' about donatin', talkin' about susceptibility to engineering