Spatial risk analysis on occurrences and dispersal of Biomphalaria straminea in and endemic area for schistosomiasis

Detalhes bibliográficos
Autor(a) principal: Gomes, Elaine Christine de Souza
Data de Publicação: 2018
Outros Autores: Mesquitta, Millena Carla da Silva, Wanderley, Leandro Batista, Melo, Fábio Lopes de, Guimarães, Ricardo José de Paula Souza e, Barbosa, Constança Simões
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Digital do Instituto Evandro Chagas (Patuá)
Texto Completo: https://patua.iec.gov.br/handle/iec/3630
Resumo: Background & objectives: Schistosomiasis is a rural endemic disease that has been expanding to urban and coastal areas in the state of Pernambuco, Brazil. The aim of this study was to characterize the distribution of breeding sites of the causative vector, Biomphalaria straminea in an endemic municipality for schistosomiasis and to present the predictive models for occurrences and dispersal of this vector snail to new areas. Methods: A malacological survey was conducted during January to December 2015 in the municipality of São Lourenço da Mata, Pernambuco, Brazil to identify the breeding sites of Biomphalaria. Faecal contamination was determined by means of the ColitagTM diagnostic kit. Rainfall data were collected, and correlated with snail distribution data. Kernel density estimation, kriging and maximum entropy (MaxEnt) modeling were used for spatial data analysis, by means of the spatial analysis software packages. Results: Out of the 130 demarcated collection points, 64 were classified as breeding sites for B. straminea. A total of 5,250 snails were collected from these sites. Among these 64 sites, four were considered as foci of schistosomiasis transmission and 54 as potential transmission foci. An inverse relationship between rainfall and snail density was observed. Kernel spatial analysis identified three areas at higher risk of snail occurrence, which were also the areas of highest faecal contamination and included two transmission foci. Kriging and MaxEnt modeling simulated the scenarios obtained through the kernel analyses. Interpretation & conclusion: Use of geostatistical tools (Kriging and MaxEnt) is efficient for identifying areas at risk and for estimating the dispersal of Biomphalaria species across the study area. Occurrence of B. straminea in the study area is influenced by the rainy season, as it becomes more abundant during the period immediately after the rainy season, increasing the risk of dispersal and the appearance of new transmission foci.
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spelling Gomes, Elaine Christine de SouzaMesquitta, Millena Carla da SilvaWanderley, Leandro BatistaMelo, Fábio Lopes deGuimarães, Ricardo José de Paula Souza eBarbosa, Constança Simões2019-04-03T18:09:35Z2019-04-03T18:09:35Z2018GOMES, E. C. de S. et al. Spatial Risk Analysis on Occurrences and Dispersal of Biomphalaria Straminea in and Endemic Area for Schistosomiasis. Journal of Vector Borne Diseases, v. 55, n. 3, p. 208–214, set. 2018.0972-9062https://patua.iec.gov.br/handle/iec/363010.4103/0972-9062.249142Background & objectives: Schistosomiasis is a rural endemic disease that has been expanding to urban and coastal areas in the state of Pernambuco, Brazil. The aim of this study was to characterize the distribution of breeding sites of the causative vector, Biomphalaria straminea in an endemic municipality for schistosomiasis and to present the predictive models for occurrences and dispersal of this vector snail to new areas. Methods: A malacological survey was conducted during January to December 2015 in the municipality of São Lourenço da Mata, Pernambuco, Brazil to identify the breeding sites of Biomphalaria. Faecal contamination was determined by means of the ColitagTM diagnostic kit. Rainfall data were collected, and correlated with snail distribution data. Kernel density estimation, kriging and maximum entropy (MaxEnt) modeling were used for spatial data analysis, by means of the spatial analysis software packages. Results: Out of the 130 demarcated collection points, 64 were classified as breeding sites for B. straminea. A total of 5,250 snails were collected from these sites. Among these 64 sites, four were considered as foci of schistosomiasis transmission and 54 as potential transmission foci. An inverse relationship between rainfall and snail density was observed. Kernel spatial analysis identified three areas at higher risk of snail occurrence, which were also the areas of highest faecal contamination and included two transmission foci. Kriging and MaxEnt modeling simulated the scenarios obtained through the kernel analyses. Interpretation & conclusion: Use of geostatistical tools (Kriging and MaxEnt) is efficient for identifying areas at risk and for estimating the dispersal of Biomphalaria species across the study area. Occurrence of B. straminea in the study area is influenced by the rainy season, as it becomes more abundant during the period immediately after the rainy season, increasing the risk of dispersal and the appearance of new transmission foci.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação Oswaldo Cruz. Instituto Aggeu Magalhães. Departamento de Parasitologia. Serviço de Laboratório e Referência em Esquistossomose. Recife, PE, BrasilFundação Oswaldo Cruz. Instituto Aggeu Magalhães. Departamento de Parasitologia. Serviço de Laboratório e Referência em Esquistossomose. Recife, PE, BrasilFundação Oswaldo Cruz. Instituto Aggeu Magalhães. Departamento de Parasitologia. Serviço de Laboratório e Referência em Esquistossomose. Recife, PE, BrasilFundação Oswaldo Cruz. Instituto Aggeu Magalhães. Departamento de Parasitologia. Serviço de Laboratório e Referência em Esquistossomose. Recife, PE, BrasilMinistério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Laboratório de Geoprocessamento. Ananindeua, PA, Brasil.Fundação Oswaldo Cruz. Instituto Aggeu Magalhães. Departamento de Parasitologia. Serviço de Laboratório e Referência em Esquistossomose. Recife, PE, BrasilengMedknow PublicationsSpatial risk analysis on occurrences and dispersal of Biomphalaria straminea in and endemic area for schistosomiasisinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleBiomphalaria / parasitologiaEsquistossomose / transmissãoEsquistossomose / epidemiologiaDoenças endêmicasCriação de animaisVetores de DoençaFezes / parasitologiaAnálise espacialSistemas de Informação GeográficaSão Lourenço da Mata (PE)info:eu-repo/semantics/openAccessreponame:Repositório Digital do Instituto Evandro Chagas (Patuá)instname:Instituto Evandro Chagas (IEC)instacron:IECORIGINALSpatial risk analysis on occurrences and dispersal of Biomphalaria straminea in and endemic area for schistosomiasis.pdfSpatial risk analysis on occurrences and dispersal of Biomphalaria straminea in and endemic area for schistosomiasis.pdfapplication/pdf1719157https://patua.iec.gov.br/bitstreams/5ff74f13-5fec-4e92-8616-b5f7965c3618/downloade66325d8ef82aab5a42a716e23f7b649MD51LICENSElicense.txtlicense.txttext/plain; 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dc.title.pt_BR.fl_str_mv Spatial risk analysis on occurrences and dispersal of Biomphalaria straminea in and endemic area for schistosomiasis
title Spatial risk analysis on occurrences and dispersal of Biomphalaria straminea in and endemic area for schistosomiasis
spellingShingle Spatial risk analysis on occurrences and dispersal of Biomphalaria straminea in and endemic area for schistosomiasis
Gomes, Elaine Christine de Souza
Biomphalaria / parasitologia
Esquistossomose / transmissão
Esquistossomose / epidemiologia
Doenças endêmicas
Criação de animais
Vetores de Doença
Fezes / parasitologia
Análise espacial
Sistemas de Informação Geográfica
São Lourenço da Mata (PE)
title_short Spatial risk analysis on occurrences and dispersal of Biomphalaria straminea in and endemic area for schistosomiasis
title_full Spatial risk analysis on occurrences and dispersal of Biomphalaria straminea in and endemic area for schistosomiasis
title_fullStr Spatial risk analysis on occurrences and dispersal of Biomphalaria straminea in and endemic area for schistosomiasis
title_full_unstemmed Spatial risk analysis on occurrences and dispersal of Biomphalaria straminea in and endemic area for schistosomiasis
title_sort Spatial risk analysis on occurrences and dispersal of Biomphalaria straminea in and endemic area for schistosomiasis
author Gomes, Elaine Christine de Souza
author_facet Gomes, Elaine Christine de Souza
Mesquitta, Millena Carla da Silva
Wanderley, Leandro Batista
Melo, Fábio Lopes de
Guimarães, Ricardo José de Paula Souza e
Barbosa, Constança Simões
author_role author
author2 Mesquitta, Millena Carla da Silva
Wanderley, Leandro Batista
Melo, Fábio Lopes de
Guimarães, Ricardo José de Paula Souza e
Barbosa, Constança Simões
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Gomes, Elaine Christine de Souza
Mesquitta, Millena Carla da Silva
Wanderley, Leandro Batista
Melo, Fábio Lopes de
Guimarães, Ricardo José de Paula Souza e
Barbosa, Constança Simões
dc.subject.decsPrimary.pt_BR.fl_str_mv Biomphalaria / parasitologia
Esquistossomose / transmissão
Esquistossomose / epidemiologia
Doenças endêmicas
Criação de animais
Vetores de Doença
Fezes / parasitologia
Análise espacial
Sistemas de Informação Geográfica
São Lourenço da Mata (PE)
topic Biomphalaria / parasitologia
Esquistossomose / transmissão
Esquistossomose / epidemiologia
Doenças endêmicas
Criação de animais
Vetores de Doença
Fezes / parasitologia
Análise espacial
Sistemas de Informação Geográfica
São Lourenço da Mata (PE)
description Background & objectives: Schistosomiasis is a rural endemic disease that has been expanding to urban and coastal areas in the state of Pernambuco, Brazil. The aim of this study was to characterize the distribution of breeding sites of the causative vector, Biomphalaria straminea in an endemic municipality for schistosomiasis and to present the predictive models for occurrences and dispersal of this vector snail to new areas. Methods: A malacological survey was conducted during January to December 2015 in the municipality of São Lourenço da Mata, Pernambuco, Brazil to identify the breeding sites of Biomphalaria. Faecal contamination was determined by means of the ColitagTM diagnostic kit. Rainfall data were collected, and correlated with snail distribution data. Kernel density estimation, kriging and maximum entropy (MaxEnt) modeling were used for spatial data analysis, by means of the spatial analysis software packages. Results: Out of the 130 demarcated collection points, 64 were classified as breeding sites for B. straminea. A total of 5,250 snails were collected from these sites. Among these 64 sites, four were considered as foci of schistosomiasis transmission and 54 as potential transmission foci. An inverse relationship between rainfall and snail density was observed. Kernel spatial analysis identified three areas at higher risk of snail occurrence, which were also the areas of highest faecal contamination and included two transmission foci. Kriging and MaxEnt modeling simulated the scenarios obtained through the kernel analyses. Interpretation & conclusion: Use of geostatistical tools (Kriging and MaxEnt) is efficient for identifying areas at risk and for estimating the dispersal of Biomphalaria species across the study area. Occurrence of B. straminea in the study area is influenced by the rainy season, as it becomes more abundant during the period immediately after the rainy season, increasing the risk of dispersal and the appearance of new transmission foci.
publishDate 2018
dc.date.issued.fl_str_mv 2018
dc.date.accessioned.fl_str_mv 2019-04-03T18:09:35Z
dc.date.available.fl_str_mv 2019-04-03T18:09:35Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.citation.fl_str_mv GOMES, E. C. de S. et al. Spatial Risk Analysis on Occurrences and Dispersal of Biomphalaria Straminea in and Endemic Area for Schistosomiasis. Journal of Vector Borne Diseases, v. 55, n. 3, p. 208–214, set. 2018.
dc.identifier.uri.fl_str_mv https://patua.iec.gov.br/handle/iec/3630
dc.identifier.issn.-.fl_str_mv 0972-9062
dc.identifier.doi.-.fl_str_mv 10.4103/0972-9062.249142
identifier_str_mv GOMES, E. C. de S. et al. Spatial Risk Analysis on Occurrences and Dispersal of Biomphalaria Straminea in and Endemic Area for Schistosomiasis. Journal of Vector Borne Diseases, v. 55, n. 3, p. 208–214, set. 2018.
0972-9062
10.4103/0972-9062.249142
url https://patua.iec.gov.br/handle/iec/3630
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Medknow Publications
publisher.none.fl_str_mv Medknow Publications
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