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Figure S1. Neutralization of IFN-γ does not affect the M3-mediated early protection to LM infection. M3-/- or WT mice were infected i.v. with 5 × 103 CFU of LM, and 24 h later the animals were administrated i.p. with 500 µg anti–IFN-γ monoclonal antibody (XMG1.2) or control rat IgG. Bacterial burdens in the spleen and liver were determined at day 3 after infection. Data shown are the mean ± SEM of three to four animals per group.