However, the antibody levels elicited by different vaccines administered on the same day (i.e. MMR and MenC) showed a different pattern: MenC levels did not correlate with measles (r = 0.12, P = 0.03), mumps (r = 0.08, P = 0.15) or rubella antibody levels (r = 0.14, P = 0.01) (Supplementary Table S2). Here, MRC1 is linked to measles.