HLA-C and infectious disease: In the same collective spirit, the COVID-19|HLA & Immunogenetics Consortium was created to investigate the role of the most polymorphic region of the human genome, the Major Histocompatibility Complex (MHC), in particular the Human Leukocyte Antigen (HLA) genes which are known to be highly associated with infectious diseases (Chen et al., 2011; Garcia et al., 2013; Spínola, 2016; Sawai et al., 2018; Thoens et al., 2018; Sanchez-Mazas, 2020a).