Previous studies demonstrate that many polymorphisms of HLA are similar in SARS-CoV susceptibility, including HLA-DRB1*1202, HLA-B*0703, HLA-B*4601 [27], and HLA-Cw*0801 [28], while, HLA-A*0201, HLA-DR0301 and HLA-Cw1502 alleles are linked to SARS disease prevention [29]. This evidence concerns the gene HLA-B and severe acute respiratory syndrome.