A proportion of CD4+ T cells from patients with chronic Chagas disease undergo a dysfunctional process, which is partially reversed by benznidazole treatment. - Pérez-Antón, Elena; Egui, Adriana; Thomas, M. Carmen; Carrilero, Bartolomé; Simón, Marina; López-Ruz, Miguel Ángel; Segovia, Manuel; López, Manuel Carlos (PLoS Neglected Tropical Diseases, 2021)