The occurrence of at least one of the alleles DQA1*0201, DQA1*05, and B1*02 has been registered at a higher prevalence in women with AIDs than in women without AIDs among infertile women (p = 0.04, OR 3.2, 95% C.I. 1–8.8). The gene discussed is HLA-DQA1; the disease is AIDS.