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. 2019 Dec 16;9:19172. doi: 10.1038/s41598-019-55574-0

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© The Author(s) 2019

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Geographic locations of Tainan (TN) city and Kaohsiung (KH) city and their history of dengue outbreaks. Panel A shows the location of the cities relative to other dengue endemic countries in Southeast Asia. Panel B shows the annual number of indigenous dengue infections recorded in TN and KH. The five most severe epidemics selected by the outbreak size were included in this study. The maps are generated by R package ggplot2, and sf (version 3.6.1, https://cran.r-project.org).