Fig. 4.

Analysis of T lymphocyte populations in the mediastinal lymph node following reactivation of latent Mycobacterium tuberculosis. See legend for Fig. 2 for an explanation of methodology. (a) CD45^hi/CD44^lo. (b) CD45^lo/CD44^lo. (c) CD45^lo/CD44^hi. Values represent means ± s.e.m. for four groups of n = 3 mice. The effect of hypothalamic–pituitary–adrenal (HPA) activation was significant on all populations tested. The effect of time on the naive and memory populations was also significant. □, CD4; ▪, CD8.