Artículo

Cecere, M.C.; Vazquez-Prokopec, G.M.; Ceballos, L.A.; Boragno, S.; Zárate, J.E.; Kitron, U.; Gürtler, R.E. "Improved chemical control of chagas disease vectors in the dry chaco region" (2013) Journal of Medical Entomology. 50(2):394-403
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Abstract:

The effectiveness of two doses of suspension concentrate (SC) pyrethroid insecticides in suppressing peridomestic populations of Triatoma infestons (Klug) was evaluated in 28 rural communities located in Santiago del Estero province, northwestern Argentina, including 388 houses and 1,516 identified sites. Four treatments were randomly assigned to peridomiciles within each community: 5% SC β-cypermethrin at standard (S, 50 mg active ingredient [AI] /m2) and double dose (2S), and 2.5% SC deltamethrin at standard (D, 25 mg [AI]/m2) and double dose (2D). Simultaneously, we assessed the effects of both pyrethroids applied at standard doses against domestic infestations. Bug infestation at the site level was assessed by timed manual collections with a dislodging agent at baseline, 13 and 21 mo postspraying (MPS). In domiciles, D and S nearly suppressed all T. infestans infestations up to 21 MPS. In peridomestic sites infested before interventions, multiple logistic regression analysis showed that site-level reinfestation at 13 MPS was significantly lower for treatment 2D (1%) than for other treatments, whereas 2S (6%), D (5%), and S (14%) did not differ significantly between them. The risk of reinfestation after spraying was significantly greater in goat or pig corrals than in other peridomestic ecotopes (in which treatments did not differ significantly), and in sites infested before interventions than in uninfested sites. The application of SC deltamethrin at double dose in goat or pig corrals may suppress T. infestans foci and achieve more sustained effects in the dry Chaco. © 2013 Entomological Society of America.

Registro:

Documento: Artículo
Título:Improved chemical control of chagas disease vectors in the dry chaco region
Autor:Cecere, M.C.; Vazquez-Prokopec, G.M.; Ceballos, L.A.; Boragno, S.; Zárate, J.E.; Kitron, U.; Gürtler, R.E.
Filiación:Laboratorio de Eco-Epidemiología, Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, C1428EGA, Buenos Aires, Argentina
Department of Environmental Studies, Emory University, 400 Dowman Dr., Math and Science Center, Suite E510, Atlanta, GA 30322, United States
Fogarty International Center, 31 Center Dr., MSC 2220, National Institutes of Health, Bethesda, MD 20892-2220, United States
Programa Nacional de Control de Vectores, Italia 1971, San Miguel de Tucumán, Tucumán, Argentina
Palabras clave:Chaco; Chagas disease; insecticide; pyrethroid; vector control; cipermethrin; deltamethrin; insecticide; nitrile; pyrethroid; animal; animal housing; Argentina; article; Chagas disease; controlled clinical trial; controlled study; disease carrier; dose response; goat; housing; insect control; intervention study; methodology; randomized controlled trial; rural population; statistical model; swine; time; Triatoma; Animals; Argentina; Chagas Disease; Dose-Response Relationship, Drug; Goats; Housing; Housing, Animal; Insect Control; Insect Vectors; Insecticides; Intervention Studies; Logistic Models; Nitriles; Pyrethrins; Rural Population; Sus scrofa; Time Factors; Triatoma
Año:2013
Volumen:50
Número:2
Página de inicio:394
Página de fin:403
DOI: http://dx.doi.org/10.1603/ME12109
Título revista:Journal of Medical Entomology
Título revista abreviado:J. Med. Entomol.
ISSN:00222585
CODEN:JMENA
CAS:cipermethrin, 52315-07-8; deltamethrin, 52918-63-5; Insecticides; Nitriles; Pyrethrins; cypermethrin, 1TR49121NP; decamethrin, 2JTS8R821G
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00222585_v50_n2_p394_Cecere

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Citas:

---------- APA ----------
Cecere, M.C., Vazquez-Prokopec, G.M., Ceballos, L.A., Boragno, S., Zárate, J.E., Kitron, U. & Gürtler, R.E. (2013) . Improved chemical control of chagas disease vectors in the dry chaco region. Journal of Medical Entomology, 50(2), 394-403.
http://dx.doi.org/10.1603/ME12109
---------- CHICAGO ----------
Cecere, M.C., Vazquez-Prokopec, G.M., Ceballos, L.A., Boragno, S., Zárate, J.E., Kitron, U., et al. "Improved chemical control of chagas disease vectors in the dry chaco region" . Journal of Medical Entomology 50, no. 2 (2013) : 394-403.
http://dx.doi.org/10.1603/ME12109
---------- MLA ----------
Cecere, M.C., Vazquez-Prokopec, G.M., Ceballos, L.A., Boragno, S., Zárate, J.E., Kitron, U., et al. "Improved chemical control of chagas disease vectors in the dry chaco region" . Journal of Medical Entomology, vol. 50, no. 2, 2013, pp. 394-403.
http://dx.doi.org/10.1603/ME12109
---------- VANCOUVER ----------
Cecere, M.C., Vazquez-Prokopec, G.M., Ceballos, L.A., Boragno, S., Zárate, J.E., Kitron, U., et al. Improved chemical control of chagas disease vectors in the dry chaco region. J. Med. Entomol. 2013;50(2):394-403.
http://dx.doi.org/10.1603/ME12109