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. 2020 Feb 7;10:2127. doi: 10.1038/s41598-020-58542-1

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© The Author(s) 2020

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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Distribution of patients and incidence by income, grouped in BRL 500 intervals. Dengue patients (DV+), patients “Not Naïve for Dengue” (DV+ and/or IgG+, NND), total number of patients and number of inhabitants (in hundreds) for each income interval (A). The blue columns represent the number of patients in each interval, while black and red columns represent the NND and DV+ patients, respectively. The dashed line represents the number of inhabitants (in hundreds), and the numbers in the top of the blue columns represent the number of census tracts grouped in each interval. Incidence (cases per total patients) distributed by income (B). The uncertainties refer to the statistical error, calculated using the weighted mean over the census tracts grouped each income interval. There was only one census tract with less than BRL 500, and only two with more than BRL 2500, which were represented by diamonds without uncertainty. Exponential decay fits are represented by dashed lines.