Humans with inherited T cell CD28 deficiency are susceptible to skin papillomaviruses but are otherwise healthy. - Béziat V; Rapaport F; Hu J; Titeux M; Bonnet des Claustres M; Bourgey M; Griffin H; Bandet É; Ma CS; Sherkat R; Rokni-Zadeh H; Louis DM; et al. (Cell, 2021)