Mice were superinfected as described in Fig 3A (B) T-bet-/- mice were administered αIL-17 or IgG isotype control antibody every other day from day -2 post-secondary bacterial infection and monitored for survival 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 logrank test in (B 