Analysis of the spatiotemporal dynamics of Dengue cases in Brazil from 2014 to 2024

Abstract

Objective: To analyze the spatio-temporal dynamics of probable Dengue cases in Brazil from 2014 to 2024, identifying temporal patterns, geographic distribution, and associations with sociodemographic and environmental determinants. Methods: Quantitative, analytical, observational cross-sectional study including all cases notified to SINAN (DATASUS/TABNET) for 2014–2024. Data were tabulated in TABWIN, organized in Excel, and analyzed using Pearson correlation in BioEstat 5.3 to assess relationships between incidence rates and factors (Social Progress Index and sex). No exclusion criteria; use of public databases obviated formal ethics approval. Results: A total of 16,679,386 probable cases were recorded, with a major peak in 2015 (1,697,801) and recrudescences in 2019 and 2023; 2024 presented the highest number of notifications and deaths to date. Acre accumulated the most cases (94,675) and Roraima the fewest (5,988); São Paulo reported 749,772 cases in 2015. Cases predominated among women and individuals aged 20–39 and 40–59 years. There were 5,794 deaths, yielding a case-fatality rate of 0.0347%. Increased rainfall and higher temperatures were identified as facilitating factors.Conclusions: Between 2014 and 2024 Dengue in Brazil exhibited cyclic patterns and marked territorial heterogeneity driven by environmental and social determinants. Incorporation of the vaccine into SUS (2024) and integrated Primary Care plus vector-control measures are essential to reduce burden and case-fatality.

Published
2026-03-18