Phenotypic analysis of CD4/10.4 and CD8/10.4 during a persistent infection.

<p>Lung lymphocytes from mice sacrificed at different stages of infection (Early: week 6; late: week 40) were stimulated with (A) TB10.4 _3–11 or (B) TB10.4 _74–88 prior to staining for the surface markers CD44, CD11a and intracellularly for IFN-γ. Samples were then examined by flow cytometry. FACS plots are shown for one mouse, representative of 3–4 mice.