Valdir Vieira da Silva , Denny Parente de Sá Barreto Maia Leite , Pollyanne Raysa Fernandes de Oliveira , Lucilene Martins Trindade Gonçalves , Guilherme Valeriano Silva , Ana Clara Neves dos Santos , Raissa Santana Renovato , Yasmim Victória Santos Pereira , Rafaela Silva Santos , Beatriz Maria de Almeida Braz , Jonatas Campos de Almeida , Rinaldo Aparecido Mota
{"title":"Geospatial surveillance of the rabies virus in cattle in Brazil","authors":"Valdir Vieira da Silva , Denny Parente de Sá Barreto Maia Leite , Pollyanne Raysa Fernandes de Oliveira , Lucilene Martins Trindade Gonçalves , Guilherme Valeriano Silva , Ana Clara Neves dos Santos , Raissa Santana Renovato , Yasmim Victória Santos Pereira , Rafaela Silva Santos , Beatriz Maria de Almeida Braz , Jonatas Campos de Almeida , Rinaldo Aparecido Mota","doi":"10.1016/j.rvsc.2026.106103","DOIUrl":null,"url":null,"abstract":"<div><div>In Brazil, bovine rabies causes significant economic losses and poses a risk to both human and veterinary public health. Its persistence is associated with agricultural expansion, environmental factors, and the presence of reservoirs that favor viral circulation. In this context, spatiotemporal analyses are essential to identify high-risk areas and guide effective surveillance strategies. This study aimed to analyze the spatiotemporal, and temporal trends of bovine rabies in Brazil between 2015 and 2024. An ecological study was conducted using data from the National Animal Health Information System (SIZ), applying spatiotemporal, and temporal trend analyses. A total of 7458 cases were reported during the study period, with higher concentrations in the Southeast (28.26%), South (27.76%), and Central-West (21.99%) regions. The highest incidence risks were observed in the South (8.15/100,000), Southeast (5.69/100,000), and Northeast (2.73/100,000). At the state level, Amapá (81.04/100,000), Paraná (8.51/100,000), Pernambuco (8.41/100,000), Amazonas (8.24/100,000), and São Paulo (7.83/100,000) stood out. <em>Desmodus rotundus</em> plays a central role in the maintenance and transmission of rabies virus to herbivores in Brazil, with case density and records of this species overlapping mainly in Minas Gerais, São Paulo, and Paraná, particularly in areas of pasture, temporary crops, and environmental mosaics. Retrospective analysis identified eight high-risk spatiotemporal clusters, with the primary cluster located in the South and Southeast (2015–2019), showing a relative risk (RR) of 2.86. Prospective analysis revealed five recent clusters, with the primary one located in Paraná and Santa Catarina (2022–2024; RR = 3.88). Joinpoint regression demonstrated an overall decreasing trend in incidence risk (APC: −8.6%). This is the first nationwide study integrating spatiotemporal, and temporal analyses of bovine rabies, highlighting its widespread occurrence across Brazil and identifying strategic areas for strengthening control measures.</div></div><div><h3>Keywords</h3><div>Bovine rabies</div><div>Spatiotemporal analysis</div><div>Epidemiology</div><div>Risk clusters</div><div>Brazil</div></div>","PeriodicalId":21083,"journal":{"name":"Research in veterinary science","volume":"203 ","pages":"Article 106103"},"PeriodicalIF":1.8000,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Research in veterinary science","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S003452882600055X","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2026/2/9 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"VETERINARY SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
In Brazil, bovine rabies causes significant economic losses and poses a risk to both human and veterinary public health. Its persistence is associated with agricultural expansion, environmental factors, and the presence of reservoirs that favor viral circulation. In this context, spatiotemporal analyses are essential to identify high-risk areas and guide effective surveillance strategies. This study aimed to analyze the spatiotemporal, and temporal trends of bovine rabies in Brazil between 2015 and 2024. An ecological study was conducted using data from the National Animal Health Information System (SIZ), applying spatiotemporal, and temporal trend analyses. A total of 7458 cases were reported during the study period, with higher concentrations in the Southeast (28.26%), South (27.76%), and Central-West (21.99%) regions. The highest incidence risks were observed in the South (8.15/100,000), Southeast (5.69/100,000), and Northeast (2.73/100,000). At the state level, Amapá (81.04/100,000), Paraná (8.51/100,000), Pernambuco (8.41/100,000), Amazonas (8.24/100,000), and São Paulo (7.83/100,000) stood out. Desmodus rotundus plays a central role in the maintenance and transmission of rabies virus to herbivores in Brazil, with case density and records of this species overlapping mainly in Minas Gerais, São Paulo, and Paraná, particularly in areas of pasture, temporary crops, and environmental mosaics. Retrospective analysis identified eight high-risk spatiotemporal clusters, with the primary cluster located in the South and Southeast (2015–2019), showing a relative risk (RR) of 2.86. Prospective analysis revealed five recent clusters, with the primary one located in Paraná and Santa Catarina (2022–2024; RR = 3.88). Joinpoint regression demonstrated an overall decreasing trend in incidence risk (APC: −8.6%). This is the first nationwide study integrating spatiotemporal, and temporal analyses of bovine rabies, highlighting its widespread occurrence across Brazil and identifying strategic areas for strengthening control measures.
期刊介绍:
Research in Veterinary Science is an International multi-disciplinary journal publishing original articles, reviews and short communications of a high scientific and ethical standard in all aspects of veterinary and biomedical research.
The primary aim of the journal is to inform veterinary and biomedical scientists of significant advances in veterinary and related research through prompt publication and dissemination. Secondly, the journal aims to provide a general multi-disciplinary forum for discussion and debate of news and issues concerning veterinary science. Thirdly, to promote the dissemination of knowledge to a broader range of professions, globally.
High quality papers on all species of animals are considered, particularly those considered to be of high scientific importance and originality, and with interdisciplinary interest. The journal encourages papers providing results that have clear implications for understanding disease pathogenesis and for the development of control measures or treatments, as well as those dealing with a comparative biomedical approach, which represents a substantial improvement to animal and human health.
Studies without a robust scientific hypothesis or that are preliminary, or of weak originality, as well as negative results, are not appropriate for the journal. Furthermore, observational approaches, case studies or field reports lacking an advancement in general knowledge do not fall within the scope of the journal.