Fig. 1
From: Japanese encephalitis vaccine-facilitated dengue virus infection-enhancement antibody in adults
Dengue virus (DENV) cross-reactive antibodies facilitated by Japanese encephalitis virus (JEV) vaccination. a Percentage of vaccinees with anti-DENV IgG antibodies. Open bars indicate serum samples with no neutralizing JEV antibodies, and closed bars indicate samples with ≥ 1:10 neutralizing antibody titers to JEV. Serum samples obtained before (b open circles) and after (c closed circles) JE vaccination. An ELISA index value above 1.1 was considered positive for DENV IgG antibodies