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Community Participation in Chagas Disease Vector Surveillance: Systematic Review

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dc.rights.license Copyright: © 2011 Abad-Franch et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
dc.contributor.author Rojas de Arias, Gladys Antonieta
dc.contributor.author Vega, María Celeste
dc.contributor.author Rolón, Miriam S.
dc.contributor.author Abad-Franch, Fernando
dc.contributor.author Santos, Walter S.
dc.contributor.editor Ricardo E. Gürtler, Universidad de Buenos Aires, Argentina
dc.date.accessioned 2019-12-21T19:56:19Z
dc.date.available 2019-12-21T19:56:19Z
dc.date.issued 2011
dc.identifier.issn 1935-2735
dc.identifier.uri http://dspace.conacyt.gov.py/xmlui/handle/123456789/42342
dc.description.abstract BACKGROUND: Vector control has substantially reduced Chagas disease (ChD) incidence. However, transmission by household-reinfesting triatomines persists, suggesting that entomological surveillance should play a crucial role in the long-term interruption of transmission. Yet, infestation foci become smaller and harder to detect as vector control proceeds, and highly sensitive surveillance methods are needed. Community participation (CP) and vector-detection devices (VDDs) are both thought to enhance surveillance, but this remains to be thoroughly assessed. METHODOLOGY/PRINCIPAL FINDINGS: We searched Medline, Web of Knowledge, Scopus, LILACS, SciELO, the bibliographies of retrieved studies, and our own records. Data from studies describing vector control and/or surveillance interventions were extracted by two reviewers. Outcomes of primary interest included changes in infestation rates and the detection of infestation/reinfestation foci. Most results likely depended on study- and site-specific conditions, precluding meta-analysis, but we re-analysed data from studies comparing vector control and detection methods whenever possible. Results confirm that professional, insecticide-based vector control is highly effective, but also show that reinfestation by native triatomines is common and widespread across Latin America. Bug notification by householders (the simplest CP-based strategy) significantly boosts vector detection probabilities; in comparison, both active searches and VDDs perform poorly, although they might in some cases complement each other. CONCLUSIONS/SIGNIFICANCE: CP should become a strategic component of ChD surveillance, but only professional insecticide spraying seems consistently effective at eliminating infestation foci. Involvement of stakeholders at all process stages, from planning to evaluation, would probably enhance such CP-based strategies.
dc.description.abstract Author Summary. Blood-sucking triatomine bugs are the vectors of Chagas disease, a potentially fatal illness that affects millions in Latin America. With no vaccines available, prevention heavily depends on controlling household-infesting triatomines. Insecticide-spraying campaigns have effectively reduced incidence, but persistent household reinfestation can result in disease re-emergence. What, then, is the best strategy to keep houses free of triatomines and thus interrupt disease transmission in the long run? We reviewed published evidence to (i) assess the effectiveness of insecticide-based vector control, gauging the importance of reinfestation; (ii) compare the efficacy of programme-based (with households periodically visited by trained staff) and community-based (with residents reporting suspect vectors found in their homes) surveillance strategies; and (iii) evaluate the performance of alternative vector-detection methods. The results confirm that insecticide-based vector control is highly effective, but also that persistent house reinfestation is a general trend across Latin America. Surveillance systems are significantly more effective when householders report suspect bugs than when programme staff search houses, either manually or using vector-detection devices. Our results clearly support the view that long-term vector surveillance will be necessary for sustained Chagas disease control – and that community participation can substantially contribute to this aim.
dc.format application/pdf
dc.relation.uri http://dspace.conacyt.gov.py/jspui/bitstream/123456789/42342/1/2011 community participation in chagas disease vector surveillance systematic review.pdf
dc.source PLoS Neglected Tropical Diseases
dc.subject.mesh Chagas Disease
dc.subject.mesh Animals
dc.subject.mesh Chagas Disease/epidemiology
dc.subject.mesh Chagas Disease/prevention & control
dc.subject.mesh Chagas Disease/transmission
dc.subject.mesh Community Participation/methods
dc.subject.mesh Humans
dc.title Community Participation in Chagas Disease Vector Surveillance: Systematic Review
dc.type Artículo
dcterms.bibliographicCitation PLoS Neglected Tropical Diseases 5(6), e1207. 2011
dc.contributor.identifier 1261551
dc.contributor.identifier 2098807
dc.contributor.identifier 2270413
dc.identifier.doi https://doi.org/10.1371/journal.pntd.0001207
dc.source.number 6
dc.source.pages e1207
dc.source.volume 5


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