Post-Control Surveillance of Triatoma infestans and Triatoma sordida with Chemically-Baited Sticky Traps
Publication Date
September 13, 2012
Journal
PLOS Neglected Tropical Diseases
Authors
Antonieta Rojas De Arias, Fernando Abad Franch, Nidia Acosta, Elsa López, et al
Volume
6
Issue
9
Pages
e1822
DOI
http://doi.org/10.1371/journal.pntd.0001822
Publisher URL
http://journals.plos.org/plosntds/article?id=10.1371%2Fjournal.pntd.0001822
PubMed
http://www.ncbi.nlm.nih.gov/pubmed/23029583
PubMed Central
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3441417
Europe PMC
http://europepmc.org/abstract/MED/23029583
Web of Science
000309528100024
Scopus
84866896306
Mendeley
http://www.mendeley.com/research/postcontrol-surveillance-triatoma-infestans-triatoma-sordida-chemicallybaited-sticky-traps
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Mendeley | Further Information

{"title"=>"Post-Control Surveillance of Triatoma infestans and Triatoma sordida with Chemically-Baited Sticky Traps", "type"=>"journal", "authors"=>[{"first_name"=>"Antonieta", "last_name"=>"Rojas de Arias", "scopus_author_id"=>"6603032586"}, {"first_name"=>"Fernando", "last_name"=>"Abad-Franch", "scopus_author_id"=>"6602000969"}, {"first_name"=>"Nidia", "last_name"=>"Acosta", "scopus_author_id"=>"6603711088"}, {"first_name"=>"Elsa", "last_name"=>"López", "scopus_author_id"=>"7202906057"}, {"first_name"=>"Nilsa", "last_name"=>"González", "scopus_author_id"=>"36825972200"}, {"first_name"=>"Eduardo", "last_name"=>"Zerba", "scopus_author_id"=>"7003353508"}, {"first_name"=>"Guillermo", "last_name"=>"Tarelli", "scopus_author_id"=>"34873777900"}, {"first_name"=>"Héctor", "last_name"=>"Masuh", "scopus_author_id"=>"6506534380"}], "year"=>2012, "source"=>"PLoS Neglected Tropical Diseases", "identifiers"=>{"isbn"=>"1935-2735 (Electronic)\\r1935-2727 (Linking)", "scopus"=>"2-s2.0-84866896306", "pui"=>"365756038", "doi"=>"10.1371/journal.pntd.0001822", "sgr"=>"84866896306", "pmid"=>"23029583", "issn"=>"19352727"}, "id"=>"3ab19bfd-4d6d-3cb8-90a0-e2e26e4d2016", "abstract"=>"BACKGROUND: Chagas disease prevention critically depends on keeping houses free of triatomine vectors. Insecticide spraying is very effective, but re-infestation of treated dwellings is commonplace. Early detection-elimination of re-infestation foci is key to long-term control; however, all available vector-detection methods have low sensitivity. Chemically-baited traps are widely used in vector and pest control-surveillance systems; here, we test this approach for Triatoma spp. detection under field conditions in the Gran Chaco.\\n\\nMETHODOLOGY/PRINCIPAL FINDINGS: Using a repeated-sampling approach and logistic models that explicitly take detection failures into account, we simultaneously estimate vector occurrence and detection probabilities. We then model detection probabilities (conditioned on vector occurrence) as a function of trapping system to measure the effect of chemical baits. We find a positive effect of baits after three (odds ratio [OR] 5.10; 95% confidence interval [CI(95)] 2.59-10.04) and six months (OR 2.20, CI(95) 1.04-4.65). Detection probabilities are estimated at p ≈ 0.40-0.50 for baited and at just p ≈ 0.15 for control traps. Bait effect is very strong on T. infestans (three-month assessment: OR 12.30, CI(95) 4.44-34.10; p ≈ 0.64), whereas T. sordida is captured with similar frequency in baited and unbaited traps.\\n\\nCONCLUSIONS/SIGNIFICANCE: Chemically-baited traps hold promise for T. infestans surveillance; the sensitivity of the system at detecting small re-infestation foci rises from 12.5% to 63.6% when traps are baited with semiochemicals. Accounting for imperfect detection, infestation is estimated at 26% (CI(95) 16-40) after three and 20% (CI(95) 11-34) after six months. In the same assessments, traps detected infestation in 14% and 8.5% of dwellings, whereas timed manual searches (the standard approach) did so in just 1.4% of dwellings only in the first survey. Since infestation rates are the main indicator used for decision-making in control programs, the approach we present may help improve T. infestans surveillance and control program management.", "link"=>"http://www.mendeley.com/research/postcontrol-surveillance-triatoma-infestans-triatoma-sordida-chemicallybaited-sticky-traps", "reader_count"=>44, "reader_count_by_academic_status"=>{"Unspecified"=>1, "Librarian"=>1, "Student > Doctoral Student"=>6, "Researcher"=>8, "Student > Ph. D. Student"=>6, "Student > Postgraduate"=>6, "Other"=>3, "Student > Master"=>4, "Student > Bachelor"=>6, "Professor"=>3}, "reader_count_by_user_role"=>{"Unspecified"=>1, "Librarian"=>1, "Student > Doctoral Student"=>6, "Researcher"=>8, "Student > Ph. D. Student"=>6, "Student > Postgraduate"=>6, "Other"=>3, "Student > Master"=>4, "Student > Bachelor"=>6, "Professor"=>3}, "reader_count_by_subject_area"=>{"Engineering"=>2, "Unspecified"=>2, "Environmental Science"=>6, "Biochemistry, Genetics and Molecular Biology"=>3, "Nursing and Health Professions"=>1, "Medicine and Dentistry"=>10, "Agricultural and Biological Sciences"=>17, "Design"=>2, "Social Sciences"=>1}, "reader_count_by_subdiscipline"=>{"Design"=>{"Design"=>2}, "Engineering"=>{"Engineering"=>2}, "Medicine and Dentistry"=>{"Medicine and Dentistry"=>10}, "Social Sciences"=>{"Social Sciences"=>1}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>17}, "Nursing and Health Professions"=>{"Nursing and Health Professions"=>1}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>3}, "Unspecified"=>{"Unspecified"=>2}, "Environmental Science"=>{"Environmental Science"=>6}}, "reader_count_by_country"=>{"United States"=>1}, "group_count"=>1}

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Scopus | Further Information

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Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/304093", "https://ndownloader.figshare.com/files/304158"], "description"=>"<div><h3>Background</h3><p>Chagas disease prevention critically depends on keeping houses free of triatomine vectors. Insecticide spraying is very effective, but re-infestation of treated dwellings is commonplace. Early detection-elimination of re-infestation foci is key to long-term control; however, all available vector-detection methods have low sensitivity. Chemically-baited traps are widely used in vector and pest control-surveillance systems; here, we test this approach for <em>Triatoma</em> spp. detection under field conditions in the Gran Chaco.</p> <h3>Methodology/Principal Findings</h3><p>Using a repeated-sampling approach and logistic models that explicitly take detection failures into account, we simultaneously estimate vector occurrence and detection probabilities. We then model detection probabilities (conditioned on vector occurrence) as a function of trapping system to measure the effect of chemical baits. We find a positive effect of baits after three (odds ratio [OR] 5.10; 95% confidence interval [CI<sub>95</sub>] 2.59–10.04) and six months (OR 2.20, CI<sub>95</sub> 1.04–4.65). Detection probabilities are estimated at <em>p</em>≈0.40–0.50 for baited and at just <em>p</em>≈0.15 for control traps. Bait effect is very strong on <em>T. infestans</em> (three-month assessment: OR 12.30, CI<sub>95</sub> 4.44–34.10; <em>p</em>≈0.64), whereas <em>T. sordida</em> is captured with similar frequency in baited and unbaited traps.</p> <h3>Conclusions/Significance</h3><p>Chemically-baited traps hold promise for <em>T. infestans</em> surveillance; the sensitivity of the system at detecting small re-infestation foci rises from 12.5% to 63.6% when traps are baited with semiochemicals. Accounting for imperfect detection, infestation is estimated at 26% (CI<sub>95</sub> 16–40) after three and 20% (CI<sub>95</sub> 11–34) after six months. In the same assessments, traps detected infestation in 14% and 8.5% of dwellings, whereas timed manual searches (the standard approach) did so in just 1.4% of dwellings only in the first survey. Since infestation rates are the main indicator used for decision-making in control programs, the approach we present may help improve <em>T. infestans</em> surveillance and control program management.</p> </div>", "links"=>[], "tags"=>["post-control", "chemically-baited", "sticky", "traps"], "article_id"=>119984, "categories"=>["Biochemistry", "Neuroscience", "Chemistry"], "users"=>["Antonieta Rojas de Arias", "Fernando Abad-Franch", "Nidia Acosta", "Elsa López", "Nilsa González", "Eduardo Zerba", "Guillermo Tarelli", "Héctor Masuh"], "doi"=>["https://dx.doi.org/10.1371/journal.pntd.0001822.s001", "https://dx.doi.org/10.1371/journal.pntd.0001822.s002"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/Post_Control_Surveillance_of_Triatoma_infestans_and_Triatoma_sordida_with_Chemically_Baited_Sticky_Traps/119984", "title"=>"Post-Control Surveillance of <em>Triatoma infestans</em> and <em>Triatoma sordida</em> with Chemically-Baited Sticky Traps", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2012-09-13 02:46:24"}
  • {"files"=>["https://ndownloader.figshare.com/files/576895"], "description"=>"<p>Study setting: typical indigenous dwelling from the study area in the Paraguayan Chaco.</p>", "links"=>[], "tags"=>["dwelling", "paraguayan"], "article_id"=>247384, "categories"=>["Biochemistry", "Neuroscience", "Chemistry"], "users"=>["Antonieta Rojas de Arias", "Fernando Abad-Franch", "Nidia Acosta", "Elsa López", "Nilsa González", "Eduardo Zerba", "Guillermo Tarelli", "Héctor Masuh"], "doi"=>["https://dx.doi.org/10.1371/journal.pntd.0001822.g001"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Study_setting_typical_indigenous_dwelling_from_the_study_area_in_the_Paraguayan_Chaco_/247384", "title"=>"Study setting: typical indigenous dwelling from the study area in the Paraguayan Chaco.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2012-09-13 02:03:04"}
  • {"files"=>["https://ndownloader.figshare.com/files/577093"], "description"=>"<p>(A), outer aspect; (B), triatomines caught in the entomological glue inside a trap; the bag containing the semiochemical bait is also visible.</p>", "links"=>[], "tags"=>["sticky", "chagas", "vector"], "article_id"=>247583, "categories"=>["Biochemistry", "Neuroscience", "Chemistry"], "users"=>["Antonieta Rojas de Arias", "Fernando Abad-Franch", "Nidia Acosta", "Elsa López", "Nilsa González", "Eduardo Zerba", "Guillermo Tarelli", "Héctor Masuh"], "doi"=>["https://dx.doi.org/10.1371/journal.pntd.0001822.g002"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Chemically_baited_sticky_trap_used_for_Chagas_disease_vector_surveillance_/247583", "title"=>"Chemically-baited sticky trap used for Chagas disease vector surveillance.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2012-09-13 02:06:23"}
  • {"files"=>["https://ndownloader.figshare.com/files/577223"], "description"=>"<p>Top-bottom: infestation estimate from a simple logistic regression model taking detection failures into account; infestation index after combined observations from chemically-baited and unbaited sticky traps; infestation index after observations only from chemically-baited sticky traps; infestation index after observations only from unbaited sticky traps; and infestation index after observations only from manual searches by trained staff. Solid circles are point estimates/proportions, and short vertical lines are the 95% confidence interval limits; in the case of observed proportions, these limits were estimated using the Agresti-Coull method <a href=\"http://www.plosntds.org/article/info:doi/10.1371/journal.pntd.0001822#pntd.0001822-Brown1\" target=\"_blank\">[22]</a>. Note that the <i>x</i>-axis is in log<sub>10</sub> scale.</p>", "links"=>[], "tags"=>["infestation", "rates", "months"], "article_id"=>247713, "categories"=>["Biochemistry", "Neuroscience", "Chemistry"], "users"=>["Antonieta Rojas de Arias", "Fernando Abad-Franch", "Nidia Acosta", "Elsa López", "Nilsa González", "Eduardo Zerba", "Guillermo Tarelli", "Héctor Masuh"], "doi"=>["https://dx.doi.org/10.1371/journal.pntd.0001822.g003"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Dwelling_infestation_rates_after_three_months_of_trap_operation_/247713", "title"=>"Dwelling infestation rates after three months of trap operation.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2012-09-13 02:08:33"}
  • {"files"=>["https://ndownloader.figshare.com/files/577276"], "description"=>"<p>Solid circles are proportions; 95% confidence intervals (between short horizontal lines) were calculated using the Agresti-Coull method <a href=\"http://www.plosntds.org/article/info:doi/10.1371/journal.pntd.0001822#pntd.0001822-Brown1\" target=\"_blank\">[22]</a>. The sharp decline of <i>T. infestans</i> is mirrored by a similar rise of <i>T. sordida</i> captures. Note that the <i>y</i>-axis is in log<sub>10</sub> scale.</p>", "links"=>[], "tags"=>["traps", "captured", "months"], "article_id"=>247767, "categories"=>["Biochemistry", "Neuroscience", "Chemistry"], "users"=>["Antonieta Rojas de Arias", "Fernando Abad-Franch", "Nidia Acosta", "Elsa López", "Nilsa González", "Eduardo Zerba", "Guillermo Tarelli", "Héctor Masuh"], "doi"=>["https://dx.doi.org/10.1371/journal.pntd.0001822.g004"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Proportion_of_traps_that_captured_Triatoma_infestans_and_T_sordida_after_three_months_N_556_traps_and_six_months_N_548_traps_of_trap_operation_/247767", "title"=>"Proportion of traps that captured <i>Triatoma infestans</i> and <i>T. sordida</i> after three months (<i>N</i> = 556 traps) and six months (<i>N</i> = 548 traps) of trap operation.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2012-09-13 02:09:27"}
  • {"files"=>["https://ndownloader.figshare.com/files/577373"], "description"=>"<p>Model structure: ψ, vector occurrence probabilities; <i>p</i>, vector detection probabilities, conditioned on occurrence (in parentheses, covariate names, with “.” denoting no covariate in that part of the model). AIC, Akaike information criterion; N, number of sampling units; <i>k</i>, number of parameters; <i>β</i>, estimated slope parameter; SE, standard error.</p>*<p>Paraguay data only.</p>", "links"=>[], "tags"=>["infestation", "chemically-baited", "bait", "hierarchical", "logistic"], "article_id"=>247856, "categories"=>["Biochemistry", "Neuroscience", "Chemistry"], "users"=>["Antonieta Rojas de Arias", "Fernando Abad-Franch", "Nidia Acosta", "Elsa López", "Nilsa González", "Eduardo Zerba", "Guillermo Tarelli", "Héctor Masuh"], "doi"=>["https://dx.doi.org/10.1371/journal.pntd.0001822.t003"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Post_control_surveillance_of_domestic_infestation_by_Triatoma_infestans_and_T_sordida_with_chemically_baited_traps_bait_effects_estimated_with_hierarchical_logistic_models_/247856", "title"=>"Post-control surveillance of domestic infestation by <i>Triatoma infestans</i> and <i>T. sordida</i> with chemically-baited traps: bait effects estimated with hierarchical logistic models.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2012-09-13 02:10:56"}
  • {"files"=>["https://ndownloader.figshare.com/files/577413"], "description"=>"⊕<p>, trap positive;</p>⊘<p> trap negative; in each 2×2 sub-table, cells contain the number of dwellings in which both trap types.</p>(•)<p>, only baited traps.</p>(#)<p>, only unbaited traps.</p>(§)<p>, or neither baited nor unbaited traps.</p>(¶)<p>captured triatomines.</p>*<p>Four dwellings could not be re-assessed at this time-point. Manual searches were negative in all dwellings.</p>", "links"=>[], "tags"=>["detection", "chemically-baited", "unbaited", "sticky", "traps", "months"], "article_id"=>247899, "categories"=>["Biochemistry", "Neuroscience", "Chemistry"], "users"=>["Antonieta Rojas de Arias", "Fernando Abad-Franch", "Nidia Acosta", "Elsa López", "Nilsa González", "Eduardo Zerba", "Guillermo Tarelli", "Héctor Masuh"], "doi"=>["https://dx.doi.org/10.1371/journal.pntd.0001822.t002"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Triatomine_detection_using_chemically_baited_and_unbaited_sticky_traps_after_six_months_of_trap_operation_/247899", "title"=>"Triatomine detection using chemically-baited and unbaited sticky traps after six months of trap operation.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2012-09-13 02:11:39"}
  • {"files"=>["https://ndownloader.figshare.com/files/577451"], "description"=>"⊕<p>, trap positive;</p>⊘<p>, trap negative; in each 2×2 sub-table, cells contain the number of dwellings in which both trap types.</p>(•)<p>, only baited traps.</p>(#)<p>, only unbaited traps.</p>(§)<p>, or neither baited nor unbaited traps.</p>(¶)<p>captured triatomines.</p>*<p>Captures include 13 positive traps set in peridomestic structures in Argentina: six were baited with Octanal, five with Benzaldehyde, and two were unbaited. Manual searches were positive in four Paraguayan and three Argentinean dwellings at the three-month assessment; in two of them, traps were negative.</p>", "links"=>[], "tags"=>["detection", "chemically-baited", "unbaited", "sticky", "traps", "months"], "article_id"=>247934, "categories"=>["Biochemistry", "Neuroscience", "Chemistry"], "users"=>["Antonieta Rojas de Arias", "Fernando Abad-Franch", "Nidia Acosta", "Elsa López", "Nilsa González", "Eduardo Zerba", "Guillermo Tarelli", "Héctor Masuh"], "doi"=>["https://dx.doi.org/10.1371/journal.pntd.0001822.t001"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Triatomine_detection_using_chemically_baited_and_unbaited_sticky_traps_after_three_months_of_trap_operation_/247934", "title"=>"Triatomine detection using chemically-baited and unbaited sticky traps after three months of trap operation.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2012-09-13 02:12:14"}
  • {"files"=>["https://ndownloader.figshare.com/files/577493"], "description"=>"*<p>Six dead triatomines could not be identified to species level and were not included in this Table.</p>⊕<p>, trap positive;</p>⊘<p>, trap negative; in each 2×2 sub-table, cells contain the number of dwellings in which both trap types.</p>(•)<p>, only baited traps.</p>(#)<p>, only unbaited traps.</p>(§)<p>, or neither baited nor unbaited traps.</p>(¶)<p>captured triatomines.</p><p>The column named ‘McNemar’ gives, for each species and assessment, the McNemar odds ratio (95% confidence interval) for correlated proportions; to facilitate comparison with slope (<i>β</i>) estimates from logistic models, here we provide ln(odds ratio) values (95% confidence interval): <i>T. infestans</i> three-month 2.1 (0.9–3.3), six-month 1.6 (0.1–3.1); <i>T. sordida</i> three-month −1.3 (−2.8–0.3), six-month 0.4 (−0.5–1.3).</p>", "links"=>[], "tags"=>["re-infestation", "chemically-baited", "unbaited", "sticky", "traps", "gran"], "article_id"=>247974, "categories"=>["Biochemistry", "Neuroscience", "Chemistry"], "users"=>["Antonieta Rojas de Arias", "Fernando Abad-Franch", "Nidia Acosta", "Elsa López", "Nilsa González", "Eduardo Zerba", "Guillermo Tarelli", "Héctor Masuh"], "doi"=>["https://dx.doi.org/10.1371/journal.pntd.0001822.t004"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Triatoma_infestans_and_T_sordida_re_infestation_assessment_using_chemically_baited_and_unbaited_sticky_traps_in_the_Gran_Chaco_Paraguay_/247974", "title"=>"<i>Triatoma infestans</i> and <i>T. sordida</i> re-infestation assessment using chemically-baited and unbaited sticky traps in the Gran Chaco, Paraguay.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2012-09-13 02:12:54"}

PMC Usage Stats | Further Information

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Relative Metric

{"start_date"=>"2012-01-01T00:00:00Z", "end_date"=>"2012-12-31T00:00:00Z", "subject_areas"=>[{"subject_area"=>"/Biology and life sciences/Agriculture", "average_usage"=>[323, 536, 657, 751, 847, 939, 1032, 1114, 1201, 1279, 1355, 1431, 1516, 1582, 1656, 1719, 1791, 1848, 1919, 2000, 2068, 2127, 2208, 2281, 2359]}, {"subject_area"=>"/Medicine and health sciences", "average_usage"=>[312, 547, 668, 769, 861, 953, 1046, 1135, 1224, 1307, 1388, 1464, 1536, 1606, 1676, 1744, 1812, 1882, 1954, 2020, 2089, 2155, 2218, 2282, 2344]}, {"subject_area"=>"/Medicine and health sciences/Epidemiology", "average_usage"=>[318, 557, 682, 789, 871, 969, 1067, 1153, 1246, 1337, 1418, 1488, 1573, 1633, 1695, 1767, 1835, 1928, 1974, 2020, 2082, 2139, 2202, 2263, 2341]}]}
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