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This study investigated whether a large dengue epidemic that struck Hanoi in 2009 also affected a nearby semirural area. Seroconversion (dengue virus-reactive immunoglobulin G enzyme-linked immunosorbent assay) was high during 2009 compared with 2008, but neutralization assays showed that it was caused by both dengue virus and Japanese encephalitis virus infections. The findings highlight the importance of continued Japanese encephalitis virus vaccination and dengue surveillance.

Original publication

DOI

10.4269/ajtmh.13-0077

Type

Journal article

Journal

Am J Trop Med Hyg

Publication Date

05/2014

Volume

90

Pages

892 - 896

Keywords

Antibodies, Viral, Dengue, Encephalitis, Japanese, Enzyme-Linked Immunosorbent Assay, Humans, Immunoglobulin G, Neutralization Tests, Seroepidemiologic Studies, Vaccination, Vietnam