CD69 and chorioamnionitis: We found that infants delivered in the setting of chorioamnionitis also demonstrated significant T cell activation, with increased CD25 (P = 0.0149), CD69 (P = 0.0104), and HLA-DR expression (P = 0.0004), compared to term infants without clinical chorioamnionitis (Figure 2); significant differences remained when outliers were excluded from statistical analysis (data not shown).