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Abstract:

The long-term effects on domiciliary reinfestation by Triatoma infestans of smoothing the plaster of indoor walls prior to insecticide application (in Amamá village) relative to only insecticide application (in Trinidad-Mercedes villages) were evaluated in rural northwestern Argentina from 1992 to 1997. All domestic and peridomestic areas of each house were sprayed with 2.5% suspension concentrate deltamethrin at 25 mg/m2 in October 1992, and infestations were assessed by various methods every 6 months. Domiciliary infestation decreased from 72-88% in 1992 to 6-17% in late 1995, to increase moderately thereafter without returning to baseline rates. Peridomestic sites were the first in becoming reinfested, and reached more abundant T. infestans populations than domiciliary areas. Domiciliary infestation rates and bug abundances were not significantly different between communities during surveillance. Domiciliary infestation rates in well-plastered houses were very low (5-9%) and approximately stable until 1996, but in houses with regular or bad plaster they consistently increased from 5 to 19-21% in both communities. Logistic multiple regression analysis showed that the likelihood of domestic infestation assessed through householders' collections was significantly and positively associated with the occurrence of an infested peridomestic site in the respective house, the occurrence of high-density domestic infestations before interventions, and well-plastered walls in 1996. Combining insecticide spraying and partial improvement of walls controlled domestic infestations and transmission of Trypanosoma cruzi effectively, but was not sufficient to eliminate T. infestans from the study area or increase the effectiveness of careful chemical control. © 2002 Elsevier Science B.V. All rights reserved.

Registro:

Documento: Artículo
Título:Effects of partial housing improvement and insecticide spraying on the reinfestation dynamics of Triatoma infestans in rural northwestern Argentina
Autor:Cecere, M.C.; Gürtler, R.E.; Canale, D.M.; Chuit, R.; Cohen, J.E.
Filiación:Laboratory of General Ecology, University of Buenos Aires, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
National Chagas Service, Center for Chagas Disease Reservoirs and Vectors, 9 de Julio 356, 5000 Córdoba, Argentina
Academia Nacional De Medicina, Centro De Investigaciones Epidemiológicas, Pacheco de Melo 2081, Buenos Aires, Argentina
Laboratory of Populations, Rockefeller University, Columbia University, 1230 York Ave., New York, NY 10021-6399, United States
Palabras clave:Chagas disease; Control; Environmental management; Insecticide; Surveillance; Triatoma infestans; deltamethrin; insecticide; insecticide; Argentina; article; environmental management; housing; infection rate; infestation; logistic regression analysis; nonhuman; pesticide spraying; Triatoma infestans; Animals; Argentina; Chagas Disease; Ectoparasitic Infestations; Housing; Humans; Insect Control; Insecticides; Nitriles; Population Surveillance; Prevalence; Pyrethrins; Triatoma; Triatoma infestans; Trypanosoma; Trypanosoma cruzi
Año:2002
Volumen:84
Número:2
Página de inicio:101
Página de fin:116
DOI: http://dx.doi.org/10.1016/S0001-706X(02)00183-3
Título revista:Acta Tropica
Título revista abreviado:Acta Trop.
ISSN:0001706X
CODEN:ACTRA
CAS:decamethrin, 52820-00-5; Insecticides; Nitriles; Pyrethrins
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0001706X_v84_n2_p101_Cecere

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Citas:

---------- APA ----------
Cecere, M.C., Gürtler, R.E., Canale, D.M., Chuit, R. & Cohen, J.E. (2002) . Effects of partial housing improvement and insecticide spraying on the reinfestation dynamics of Triatoma infestans in rural northwestern Argentina. Acta Tropica, 84(2), 101-116.
http://dx.doi.org/10.1016/S0001-706X(02)00183-3
---------- CHICAGO ----------
Cecere, M.C., Gürtler, R.E., Canale, D.M., Chuit, R., Cohen, J.E. "Effects of partial housing improvement and insecticide spraying on the reinfestation dynamics of Triatoma infestans in rural northwestern Argentina" . Acta Tropica 84, no. 2 (2002) : 101-116.
http://dx.doi.org/10.1016/S0001-706X(02)00183-3
---------- MLA ----------
Cecere, M.C., Gürtler, R.E., Canale, D.M., Chuit, R., Cohen, J.E. "Effects of partial housing improvement and insecticide spraying on the reinfestation dynamics of Triatoma infestans in rural northwestern Argentina" . Acta Tropica, vol. 84, no. 2, 2002, pp. 101-116.
http://dx.doi.org/10.1016/S0001-706X(02)00183-3
---------- VANCOUVER ----------
Cecere, M.C., Gürtler, R.E., Canale, D.M., Chuit, R., Cohen, J.E. Effects of partial housing improvement and insecticide spraying on the reinfestation dynamics of Triatoma infestans in rural northwestern Argentina. Acta Trop. 2002;84(2):101-116.
http://dx.doi.org/10.1016/S0001-706X(02)00183-3