Mice were superinfected as described in Fig 3A (D) Pneumococcal cfu in BAL following αLy6G antibody mediated neutrophil depletion. Control T-bet-/- mice were administered with IgG isotype control antibody Data information: Dat are combined from two independent experiments (n = 8-12 mice per group) All data are represented as mean ± S.E.M. Statistical significance was determined wit Mann-Whitney U test in (D 