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Four L. infantum isolates were used to infect peritoneal macrophages from BALB/c and Swiss Webster mice, at a ratio of 5:1 (parasite/macrophage). The infections were maintained for 24 or 72 h. MØ (macrophage); LIC.B (L. infantum chagasi isolated from BALB/c mice); LII.B (L. infantum infantum isolated from BALB/c mice); LIC.S (L. infantum chagasi isolated from Swiss Webster mice); and LII.S (L. infantum infantum isolated from Swiss Webster mice).
