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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Spatiotemporal-based clusters as a method for dengue surveillance

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Author(s):
Canal, Mayara Romero [1] ; da Silva Ferreira, Elis Regina [1] ; Estofolete, Cassia Fernanda [2] ; Dias, Andreia Martiniano [1] ; Tukasan, Caroline [1] ; Bertoque, Ana Carolina [1] ; Muniz, Vitor Dantas [1] ; Nogueira, Mauricio Lacerda [2] ; da Silva, Natal Santos [3]
Total Authors: 9
Affiliation:
[1] Uniao Fac Grandes Lagos, Fac Med, Sao Jose Do Rio Preto, SP - Brazil
[2] Fac Med Sao Jose do Rio Preto, Lab Pesquisas Virol, Sao Paulo - Brazil
[3] Uniao Fac Grandes Lagos, Lab Modelagens Matemat & Estat Med, Sao Jose Do Rio Preto, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Revista Panamericana de Salud Pública = Pan American Journal of Public Health; v. 41, 2017.
Web of Science Citations: 0
Abstract

ABSTRACT Objectives To develop and demonstrate the use of a new method for epidemiological surveillance of dengue. Methods This was a retrospective cohort study using data from the Health Department of São José do Rio Preto (São Paulo, Brazil). The geographical coordinates were obtained using QGIS™ (Creative Commons Corporation, Mountain View, California, United States), based on patient addresses in the dengue notification system of the Government of Brazil. SaTScan™ (Martin Kulldorff, Boston, Massachusetts, United States) was then used to create a space-time scan analysis to find statistically significant clusters of dengue. These results were plotted and visualized using Google Earth™ mapping service (Google Incorporated, Mountain View, California, United States). Results More clusters were detected when the maximum number of households per cluster was set to 10% (11 statistically significant clusters) rather than 50% (8 statistically significant clusters). The cluster radius varied from 0.18 – 2.04 km and the period of time varied from 6 days – 6 months. The infection rate was more than 0.5 cases/household. Conclusions When using SaTScan for space-time analysis of dengue cases, the maximum number of households per cluster should be set to 10%. This methodology may be useful to optimizing dengue surveillance systems, especially in countries where resources are scarce and government programs have not had much success controlling the disease. (AU)

FAPESP's process: 13/21719-3 - Epidemiological study of dengue (serotypes1-4) in a cohort of São José do Rio Preto, São Paulo, Brazil, during 2014-2018
Grantee:Maurício Lacerda Nogueira
Support Opportunities: Research Projects - Thematic Grants