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Number of expanded TB10.4-specific CD8+ T cells in spleens. Mice were injected with BCG by i.p. at 20 weeks after the final immunization. After 9 days, the number of TB10.4-specific CD8+ TCM like cells was evaluated by TB10.44-12 pentamer. (A) The representative results of every group; (B) Frequency percentages of TB10.4-specific CD8+ TCM like cells. Data collected were presented as means ± SD from 5 mice per group. * p < 0.05.
