Mononuclear cells were collected from 24 infants at birth (n=12) and resampled at 12 months (n=12) and cells were either activated with anti-CD3 (0.5 ug/mL) + IL2(20U) or rested in media alone for 24 hours. CD4+ cells were purified and DNA was harvested and bisulphite converted for methylation analy...