Assessment of Clinical Consistency of Three Production Lots of GSK Biologicals' HRV Vaccine

Inclusion Criteria: * Subjects who the investigator believes that their parents/guardians can and will comply with the requirements of the protocol should be enrolled in the study. * A male or female between, and including, 6 and 12 weeks of age at the time of the first vaccination. * Written informed consent obtained from the parent or guardian of the subject. * Free of obvious health problems as established by medical history and clinical examination before entering into the study. Exclusion Criteria: * Use of any investigational or non-registered product (drug or vaccine) other than the study vaccine(s) within 30 days preceding the first dose of study vaccine, or planned use during the study period. * Child is unlikely to remain in the study area for the duration of the study. * Previous confirmed occurrence of rotavirus gastroenteritis. * Gastroenteritis within 7 days preceding the study vaccine administration. * Household contact with an immunosuppressed individual or pregnant woman. * Use of antibiotics during the period starting from 7 days before dose 1 of vaccine(s). * Planned administration of a vaccine (other than routine pediatric vaccines) not foreseen by the study protocol during the period starting from 14 days before each dose of study vaccine(s) and ending 14 days after. * Any confirmed or suspected immunosuppressive or immunodeficient condition, including human immunodeficiency virus (HIV) infection. * Any clinically significant history of chronic gastrointestinal disease including any uncorrected congenital malformation of the gastrointestinal tract or other serious medical condition as determined by the investigator. * History of allergic disease or reactions likely to be exacerbated by any component of the vaccine. * Major congenital defects or serious chronic illness. * Acute disease at time of enrollment. * Administration of immunoglobulins and/or any blood products since birth or planned administration during the study period.