The purpose of the study is to evaluate the persistence of the immune response of GSK134612 vaccine up to 68 months after vaccination in the primary vaccination study (NCT number = NCT00674583) of 2 to 10 year old subjects. This study will also evaluate the safety and immunogenicity of a booster dose of GSK134612 vaccine subjects who were primed in the primary vaccination study with either GSK134612 vaccine or Menjugate®.