CMV-infected vs uninfected infants (congenitally and postnatally infected infants in same cohort):Infected infants had lower CD4 IFN-γ response to measles (p = 0.013)No significant difference in CD8 T cell proliferation or IFN-γ response to measlesNo difference in measles antibody titersInfected infants’ IFN-γ response to CMV correlated with measles antibody response at 13 monthsNo significant difference in IgG response to Hib or tetanus vaccines at 18 months. The gene discussed is CD4; the disease is tetanus.