Distribution of HLA antigens in Zoroastrians.

The frequencies of HLA locus A, B and C antigens were determined in a previously unstudied population, the Zoroastrians. The phenotype and gene frequencies for this group are presented and contrasted with the distribution of HLA antigens among the Iranian Moslems. Comparison of the HLA profiles of these two Iranian populations suggests that the present Zoroastrians are a distinct group.