Rh phenotypes of Chinese blood donors in Hong Kong, with special reference to weak D antigens.
Among Hong Kong Chinese blood donors, 99.71 percent were found to be D+. Of these, 55.02 percent were of the phenotype CCDee. The Du phenotype was found to be present in 0.016 percent. Among the 0.27 percent who were apparently D-, 0.079 percent were of the Del phenotype, while the remaining 0.19 percent were "true D-," as defined by a nonreactive eluate obtained by an adsorption and elution procedure using anti-D. The ccdee phenotype constitutes 56.77 percent of the "apparent D-" and 80.24 percent of the true D-. Data show that anti-D rarely occurs in Hong Kong Chinese, and it is postulated that this could be due to the presence of a very weak form of the D antigen among many of those who appear to be D-.
Mak
K H
KH
Hong Kong Red Cross Blood Transfusion Service, Yaumatei, Kowloon.
Yan
K F
KF
Cheng
S S
SS
Yuen
M Y
MY
D001782:Blood Donors / Q000706:statistics & numerical data; D002681:China / Q000208:ethnology; D006723:Hong Kong; D006801:Humans; D015994:Incidence; D007564:Japan / Q000208:ethnology; D010641:Phenotype; D012204:Rh-Hr Blood-Group System / Q000235:genetics*
D012204:Rh-Hr Blood-Group System