FIG. 1.
Course of L. infantum infection in BALB/c mice. Mice were inoculated with 108 stationary-phase promastigotes/mouse via the caudal vein, and parasite loads were evaluated on liver and spleen touch prints at the indicated time points after injection. Visceral proliferation of amastigotes was quantified in LDU (defined in Materials and Methods). Results are from a representative infection experiment, and the values are means ± SD for three mice at each time point. Patterns were similar in seven experiments.