A phase II, randomized, observer blind, controlled, multicenter study to assess immunogenicity and antibody persistence following vaccination with GSK's candidate combined measles, mumps, and rubella vaccine (MMR) versus M-M-R® II as a first dose, both administered subcutaneously at 12-15 months of age, concomitantly with hepatitis A vaccine (HAV), varicella vaccine (VV) and pneumococcal conjugate vaccine (PCV) but at separate sites. |