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Numbers of CD8 T cell subsets harvested from the lungs 30 or 120 days after aerosol challenge infection. Mice vaccinated with BCG [hatched bars] or with Δ19 [filled] were compared to control mice [open]. After appropriate gating [a] CD8 cells in the lungs were analyzed for [b] CD62Lhi central memory cells or CD62Llo activated cells. Significance differences between marker expression was calculated using two-way ANOVA. Results are representative or two independent experiments.
