Analysis for the impact of HCMV infection on the day of vaccination on the subsequent in vitro cytokine responses to the vaccine antigens showed very little consequence of HCMV infection on responses to measles vaccination, with only VEGF responses being lower (p = 0.002) in the HCMV+ compared to HCMV- infants (Table 6). The gene discussed is VEGFA; the disease is measles.