To compare the Vero cell-derived inactivated Japanese encephalitis(JE) vaccine 'KD-287(JEIMMUGEN INJ.)' with the mouse brain-derived inactivated JE vaccine in terms of the immunogenicity and safety, in Korean healthy children aged 12~23 months
To assess the immunogenicity and safety of the vero cell-derived inactivated JE vaccine in Korean healthy children aged 12~23 months