Study to Investigate the Seropersistence of TBE Virus Antibodies Approx. 3 Years After a Booster Vaccination With FSME-IMMUN 0.25 mL JUNIOR in Children
Conditions
Interventions
- BIOLOGICAL: Formaldehyde inactivated, sucrose gradient purified TBE virus antigen, strain Neudörfl
Sponsor
Pfizer