Spatial distribution of the risk of dengue and the entomological indicators in Sumaré, state of São Paulo, Brazil.
Dengue fever is a major public health problem worldwide, caused by any of four virus (DENV-1, DENV-2, DENV-3 and DENV-4; Flaviviridae: Flavivirus), transmitted by Aedes aegypti mosquito. Reducing the levels of infestation by A. aegypti is one of the few current strategies to control dengue fever. En...
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ftdoajarticles:oai:doaj.org/article:5b840153a817412f80290ef265e25695 2023-05-15T15:14:39+02:00 Spatial distribution of the risk of dengue and the entomological indicators in Sumaré, state of São Paulo, Brazil. Gerson Laurindo Barbosa Maria Rita Donalísio Celso Stephan Roberto Wagner Lourenço Valmir Roberto Andrade Marylene de Brito Arduino Virgilia Luna Castor de Lima 2014-05-01T00:00:00Z https://doi.org/10.1371/journal.pntd.0002873 https://doaj.org/article/5b840153a817412f80290ef265e25695 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC4022465?pdf=render https://doaj.org/toc/1935-2727 https://doaj.org/toc/1935-2735 1935-2727 1935-2735 doi:10.1371/journal.pntd.0002873 https://doaj.org/article/5b840153a817412f80290ef265e25695 PLoS Neglected Tropical Diseases, Vol 8, Iss 5, p e2873 (2014) Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 article 2014 ftdoajarticles https://doi.org/10.1371/journal.pntd.0002873 2023-01-08T01:24:30Z Dengue fever is a major public health problem worldwide, caused by any of four virus (DENV-1, DENV-2, DENV-3 and DENV-4; Flaviviridae: Flavivirus), transmitted by Aedes aegypti mosquito. Reducing the levels of infestation by A. aegypti is one of the few current strategies to control dengue fever. Entomological indicators are used by dengue national control program to measure the infestation of A. aegypti, but little is known about predictive power of these indicators to measure dengue risk. In this spatial case-control study, we analyzed the spatial distribution of the risk of dengue and the influence of entomological indicators of A. aegypti in its egg, larva-pupa and adult stages occurring in a mid-size city in the state of São Paulo. The dengue cases were those confirmed by the city's epidemiological surveillance system and the controls were obtained through random selection of points within the perimeter of the inhabited area. The values of the entomological indicators were extrapolated for the entire study area through the geostatistical ordinary kriging technique. For each case and control, the respective indicator values were obtained, according with its geographical coordinates and analyzed by using a generalized additive model. Dengue incidence demonstrated a seasonal behavior, as well as the entomological indicators of all mosquito's evolutionary stages. The infestation did not present a significant variation in intensity and was not a limiting or determining factor of the occurrence of cases in the municipality. The risk maps of the disease from crude and adjusted generalized additive models did not present differences, suggesting that areas with the highest values of entomological indicators were not associated with the incidence of dengue. The inclusion of other variables in the generalized additive models may reveal the modulatory effect for the risk of the disease, which is not found in this study. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic PLoS Neglected Tropical Diseases 8 5 e2873 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
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Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 |
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Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 Gerson Laurindo Barbosa Maria Rita Donalísio Celso Stephan Roberto Wagner Lourenço Valmir Roberto Andrade Marylene de Brito Arduino Virgilia Luna Castor de Lima Spatial distribution of the risk of dengue and the entomological indicators in Sumaré, state of São Paulo, Brazil. |
topic_facet |
Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 |
description |
Dengue fever is a major public health problem worldwide, caused by any of four virus (DENV-1, DENV-2, DENV-3 and DENV-4; Flaviviridae: Flavivirus), transmitted by Aedes aegypti mosquito. Reducing the levels of infestation by A. aegypti is one of the few current strategies to control dengue fever. Entomological indicators are used by dengue national control program to measure the infestation of A. aegypti, but little is known about predictive power of these indicators to measure dengue risk. In this spatial case-control study, we analyzed the spatial distribution of the risk of dengue and the influence of entomological indicators of A. aegypti in its egg, larva-pupa and adult stages occurring in a mid-size city in the state of São Paulo. The dengue cases were those confirmed by the city's epidemiological surveillance system and the controls were obtained through random selection of points within the perimeter of the inhabited area. The values of the entomological indicators were extrapolated for the entire study area through the geostatistical ordinary kriging technique. For each case and control, the respective indicator values were obtained, according with its geographical coordinates and analyzed by using a generalized additive model. Dengue incidence demonstrated a seasonal behavior, as well as the entomological indicators of all mosquito's evolutionary stages. The infestation did not present a significant variation in intensity and was not a limiting or determining factor of the occurrence of cases in the municipality. The risk maps of the disease from crude and adjusted generalized additive models did not present differences, suggesting that areas with the highest values of entomological indicators were not associated with the incidence of dengue. The inclusion of other variables in the generalized additive models may reveal the modulatory effect for the risk of the disease, which is not found in this study. |
format |
Article in Journal/Newspaper |
author |
Gerson Laurindo Barbosa Maria Rita Donalísio Celso Stephan Roberto Wagner Lourenço Valmir Roberto Andrade Marylene de Brito Arduino Virgilia Luna Castor de Lima |
author_facet |
Gerson Laurindo Barbosa Maria Rita Donalísio Celso Stephan Roberto Wagner Lourenço Valmir Roberto Andrade Marylene de Brito Arduino Virgilia Luna Castor de Lima |
author_sort |
Gerson Laurindo Barbosa |
title |
Spatial distribution of the risk of dengue and the entomological indicators in Sumaré, state of São Paulo, Brazil. |
title_short |
Spatial distribution of the risk of dengue and the entomological indicators in Sumaré, state of São Paulo, Brazil. |
title_full |
Spatial distribution of the risk of dengue and the entomological indicators in Sumaré, state of São Paulo, Brazil. |
title_fullStr |
Spatial distribution of the risk of dengue and the entomological indicators in Sumaré, state of São Paulo, Brazil. |
title_full_unstemmed |
Spatial distribution of the risk of dengue and the entomological indicators in Sumaré, state of São Paulo, Brazil. |
title_sort |
spatial distribution of the risk of dengue and the entomological indicators in sumaré, state of são paulo, brazil. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2014 |
url |
https://doi.org/10.1371/journal.pntd.0002873 https://doaj.org/article/5b840153a817412f80290ef265e25695 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
PLoS Neglected Tropical Diseases, Vol 8, Iss 5, p e2873 (2014) |
op_relation |
http://europepmc.org/articles/PMC4022465?pdf=render https://doaj.org/toc/1935-2727 https://doaj.org/toc/1935-2735 1935-2727 1935-2735 doi:10.1371/journal.pntd.0002873 https://doaj.org/article/5b840153a817412f80290ef265e25695 |
op_doi |
https://doi.org/10.1371/journal.pntd.0002873 |
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PLoS Neglected Tropical Diseases |
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8 |
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5 |
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e2873 |
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