Table 2 BAL fluid immune cell and protein levels. Significance was assessed by comparing outcomes with a two-tailed t-test assuming equal variance between groups. If data were not normally distributed and variance was unequal between groups, the Wilcoxon Rank Sum test was used for comparison of data sets. Data are presented as mean ± SEM, n = 9, *Significantly different (p < 0.05) from naive controls as determined by visual identification and quantification of Giemsa-stained cells