CD4 and HIV-1 infection: Specially, five SNPs (rs17857295, rs4244165, rs6084497, rs16989000, and rs4612666) were associated with HIV-1 infection, three SNPs (rs2066804, rs1143623, and rs1467199) were associated with CD4 T+ cell counts in patients with AIDS, and three SNPs (rs867335, rs10754558, and rs1131454) were found to be related to the clinical staging of AIDS.