Fig. 2: Neutralizing antibody titers against JE virus before and after vaccination in vaccination groups and the unvaccinated control group.

The WHO reference is a live viral neutralizing antibody titer of 1:10 against JE virus. A Group LJEV, B Group IJEV-IJEV with a 7-day interval, C Group IJEV-IJEV with a 28-day interval, and D Unvaccinated control group.