Figure 3

Identification of (A–C) TIM-3+ and (D–F) CTLA-4+ cells by immunohistochemistry and quantitative analysis of exhausted cells in the spleen of dogs naturally infected with L. infantum grouped according to the disorganization of the splenic white pulp and the parasite load: (B) percentage of TIM-3+ cells, (C) TIM-3 cells/mm2, (E) percentage of CTLA-4+ cells, and (F) CTLA-4+ cells/mm2. Mann-Whitney test: (E) *p = 0.00160. Kruskal-Wallis test: (E) p = 0.021.