Figure 3. Immune response after vaccination with JE-CV in children who were seronegative at baseline. GMT, geometric mean titer and 95% CI; PRNT₅₀, plaque reduction neutralization test; FAS for JE-CV primed children and PP for JE vaccine naïve children; error bars, 95% confidence intervals. One dose of JE-CV was given to children who previously received a single dose of JE-CV two years earlier, and to JE-vaccine naïve children. JE neutralizing antibody titers were assessed using a PRNT₅₀. This figure shows the immune response in children who were seronegative at the start of the study.