Medigen Vaccine Biologics Corp.

This study tests an inactivated EV71 vaccine (Envacgen®) in healthy children aged 6 to under 10 years and compares their immune response and safety to children aged 2 to under 6 years. Around 378 children will receive two shots 57 days apart. The goal is to see if the vaccine wor…

This study follows up on 220 children who received the EV71 vaccine (Envacgen®) or a placebo about 6 years ago. Researchers will measure antibody levels in the blood to see if protection against enterovirus 71, which causes hand-foot-mouth disease, has lasted. The goal is to unde…