Increased apoptosis, curtailed expansion and incomplete differentiation of CD8+ T cells combine to decrease clearance of L. monocytogenes in old mice.

Smithey MJ, Renkema KR, Rudd BD, Nikolich-Zugich J. "Increased apoptosis, curtailed expansion and incomplete differentiation of CD8+ T cells combine to decrease clearance of L. monocytogenes in old mice." Eur. J. Immunol.. 2011;41(5):1352-64.