Dataset from A Phase IIIb, Open, Randomised, Multicentre, Primary Study in Healthy Children, to Establish the Non-inferiority of GlaxoSmithKline (GSK) Biologicals' MeMuRu-OKA Vaccine (Administered at 9 and 15 Months of Age) Versus Priorix™ (9 Months of Age) and Priorix™ Co-administered With Varilrix™ at 15 Months of Age (Comparator) and Also to Evaluate the Non-inferiority of Priorix™ (9 Months of Age) and MeMuRu-OKA Vaccine (15 Months of Age) Versus the Comparator, All Administered Subcutaneously as Two-dose Primary Vaccination Course

The purpose of this study is to assess non-inferiority of two different vaccination regimens using GSK Biological's MMRV vaccine (two doses at 9 and 15 months) or Priorix™ (9 months) and one dose of MMRV vaccine (15 months) to the current standard of care which is Priorix™ administered at 9 months of age followed by concomitant administration of Priorix™ with Varilrix™ at 15 months of age in a measles endemic environment such as India.