In their review, Fricke-Galindo et al. (7) noted that HLA-A*25:01, -B*15:27, -B*46:01, -C*01:02, and-C*07:29 alleles are associated with COVID-19 susceptibility; while HLA-A*02:02, -B*15:03, and-C*12:03 are alleles with low risk of infection. The gene discussed is HLA-A; the disease is infection.