Protective HLA alleles against severe COVID-19: HLA-A*68 as an ancestral protection allele in Tapachula-Chiapas, Mexico

Susana Hernández-Doño, Roberto González, Ma Guadalupe Trujillo-Vizuet, F.Y. Zamudio-Castellanos, Rafael García-Silva, Pedro Bulos-Rodríguez, Carlos A. Vazquez-Guzmán, Ximena Cárdenas-Ramos, Diana de León Rodríguez, Fabíola Elias, Sergio Domínguez-Arrevillaga, José Manuel Pérez-Tirado, Olga Vera‐Lastra, Julio Granados, Jesús Sepúlveda-Delgado