A phylogenetic study of dengue virus in urban Vietnam shows long-term persistence of endemic strains.

"sequences generated in this study have been uploaded to ncbi genbank with accession numbers oq426566-oq427062.; data availability processed fasta files used in this study are availble upon request and have been deposited at the national center for biotechnology information (ncbi oq426566-oq427062). data availability processed fasta files used in this study are availble upon request and have been deposited at the national center for biotechnology information (ncbi oq426566"

"Conflict of interest M.V.L., G.H.-T., F.R. and L.V.W. are employees of Johnson & Johnson."

"Funding Financial support for this study was provided by the UK Medical Research Council (www.mrc.ac.uk) as well as Janssen (Johnson & Johnson, Project number: ITPMZG4810); support for the population study site was provided by the Japan Program for Infectious Diseases Research and Infrastructure, Japan Agency for Medical Research and Development under Grant Number JP21wn0125006. O.J.B. was supported by a UK Medical Research Council Career Development Award (MR/V031112/1). The funders had no role in the study design, data collection, and analysis; decision to publish; or preparation of the manuscript."