High proportion of Ugandans with pre-pandemic SARS-CoV-2 cross-reactive CD4+ and CD8+ T-cell responses.

Namuniina A, Muyanja ES, Biribawa VM, Okech BA, Ssemaganda A, Price MA, Hills N, Nanteza A, Bagaya BS, Weiskopf D, Riou C, Reynolds SJ, Galwango RM, Redd AD