Safety Study of FSME-IMMUN NEW in Healthy Children and Adolescents Aged 1 to 15 Years

Inclusion Criteria: Male and female children and adolescents will be eligible for participation in this study if: * they are aged 1 year (from the 1st birthday) to \< 16 years (to the last day before the 16th birthday); * they are clinically healthy, (i. e. the physician would have no reservations vaccinating with FSME-IMMUN NEW outside the scope of a clinical trial); * their parents/legal guardians understand the nature of the study and agree to its provisions; * written informed consent is available from both parents/legal guardians, * for Germany/Austria: additional written informed consent is available for children older than 8 years * they or their parents/legal guardians agree to keep a volunteer diary. For safety reasons, female volunteers who have reached sexual maturity at study start have to meet the following additional inclusion criteria: \- negative pregnancy test at study entry; Exclusion Criteria: Children and adolescents will be excluded from participation in this study if they: * have a history of any TBE vaccination; * have a history of TBE infection; * have a history of allergic reactions to one of the components of the vaccine; * suffer from a disease (e.g. autoimmune disease) or are undergoing a form of treatment (e.g. systemic corticosteroids, chemotherapeutics) that can be expected to influence immunological functions; * are known to be HIV positive (a special HIV test is not required for the purpose of the study); * have received banked blood or immunoglobulins within one month of study entry; * have a history of vaccination against yellow fever and/or Japanese B-encephalitis; * suffer from hemorrhagic diathesis; * are participating simultaneously in another clinical trial; * if female: are pregnant or breastfeeding. Volunteers who meet the inclusion/exclusion criteria, but have a febrile illness (body temperature \> 38°C) at the scheduled time of vaccination, will not be vaccinated before their body temperature returns to normal. Volunteers who have received any other vaccination within 4 weeks prior to visit 1 will not be vaccinated until an interval of 4 weeks has passed. In this case visit 1 will take place separately. If volunteers have received antipyretics within 4 hours prior to the intended TBE vaccination, the vaccination should be performed at a later time. Volunteers who have a positive TBE antibody value prior to the first vaccination will be excluded from the statistical analysis of the primary endpoint.