Frequencies of Rh and Kidd Blood Types and Private and Public Antigens among the Japanese

Abstract

Studies were carried out on the frequencies of the Rh and Kidd blood groups as well as of the Wr^a, Sw^a, Vel, and I antigens among residents in Tokyo. It has been found that of the Rh group the frequency of cde chromosomes is much lower than among English or American Whites, while the frequency of Cde chromosomes is somewhat higher than among the latter. Our study of the Kidd groups has shown that the frequency of the Jk^a factor among the Japanese is lower than that among the English.
Our examination has revealed no case of Vel negative, I negative, nor of Wr^a and Sw^a positive.