Fig. 5From: Effect of a synbiotic on the response to seasonal influenza vaccination is strongly influenced by degree of immunosenescenceLower numbers of circulating CD28-CD57+ T helper cells in seroconverters to the Brisbane subunit compared with non-converters amongst subjects randomized to B. longum + Gl-OS. Data are absolute numbers of T cell subset x1000/ml ± 2SE for n = 58 young and n = 54 older subjects. * Denotes significantly different from non-seroconverters (P < 0.05, independent values T-test)Back to article page