Reports showed the association among Han Chinese leprosy patients and Thai non-leprosy patients between HLA-B*13:01 and dapsone hypersensitivity reactions (odds ratio 122.1, p-value = 6.038 10−12 and odds ratio 20.53, p-value = 6.84 10−25) and dapsone-induced SCARs (odds ratio 54.00, p-value = 0.0001) and dapsone-induced DRESS (odds ratio 60.75, p-value = 0.0001), respectively (Wang et al., 2013; Zhang et al., 2013; Tempark et al., 2017). The gene discussed is HLA-B; the disease is leprosy.