Study of the Immunogenicity and Safety of a Challenge Dose of HBVAXPRO in Healthy Children Vaccinated 10 Years Ago With 3 Doses of HEXAVAC or INFANRIX HEXA

Inclusion Criteria: * Healthy child * Child vaccinated with 3 doses of HEXAVAC or 3 doses of INFANRIX HEXA as infant * Child vaccinated with the third dose of HEXAVAC or INFANRIX HEXA at least 10 years prior to challenge dose Exclusion Criteria: * Receipt of more than 3 doses of any Hepatitis B containing vaccine * History of clinical diagnosis of infection due to Hepatitis B * History or current close contact with known carriers of Hepatitis B virus * Prior known sensitivity or allergy to any component of HBVAXPRO * Chronic illness / medical condition that could interfere with study conduct or completion * Coagulation disorder that would contraindicate intramuscular injection * Subject is pregnant * Receipt of corticosteroids for more than 14 days in the 30 days prior to study * Receipt of Immunoglobulins, blood or blood-derived products in the 3 months prior to study * Planned participation in another clinical study