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Abstract:

Dogs are domestic reservoir hosts of Trypanosoma cruzi, the etiological agent of Chagas disease. We evaluated the effect of deltamethrin-treated dog collars (DTDCs) over time on the population dynamics of Triatoma infestans, a main T. cruzi vector. Forty founder bugs of mixed life stages were allowed to colonize mud-thatched experimental huts and exposed continuously to either uncollared control dogs (N = 3) or dogs wearing DTDCs (N = 7) for a period of up to 196 days. When compared with bugs exposed to control dogs, bugs exposed to collared dogs were shown to have reduced feeding success (odds ratio [OR] = 0.40; 95% confidence interval [CI], 0.26-0.63; P < 0.001) and lower survival (OR = 0.15; 95% CI, 0.08-0.29; P < 0.001); in fact, all of the bug populations exposed to collared dogs became extinct 77-196 days after study initiation. Bugs exposed to DTDC-wearing dogs were also shown to have a lower fecundity (i.e., number of eggs produced per live female bug: OR = 0.64; 95% CI, 0.51-0.81; P < 0.001) and molting rate to first-instar nymphs (OR = 0.32; 95% CI, 0.13-0.75; P < 0.01) than those bugs exposed to control dogs. DTDCs could represent a novel tool to prevent and control canine and (hence) human Chagas disease. Copyright © 2006 by The American Society of Tropical Medicine and Hygiene.

Registro:

Documento: Artículo
Título:Extinction of experimental Triatoma infestans populations following continuous exposure to dogs wearing deltamethrin-treated collars
Autor:Reithinger, R.; Ceballos, L.; Stariolo, R.; Davies, C.R.; Gürtler, R.E.
Filiación:807 S. Overlook Drive, Alexandria, VA 22305, United States
Departamento de Ecologia, Genética e Evolución, Ciudad Universitaria, Buenos Aires, C1428 EHA, Argentina
National Vector Control Centre, Córdoba, Argentina
Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, United Kingdom
Palabras clave:deltamethrin; insecticide; nitrile; pyrethroid; animal experiment; article; climate; controlled study; dog; drug exposure; egg production; fertility; infestation; molting; nonhuman; nymph; population dynamics; survival rate; Triatoma infestans; animal; Argentina; Chagas disease; disease carrier; disease transmission; drug effect; feeding behavior; female; human; male; parasitology; Trypanosoma; Canis familiaris; Triatoma infestans; Trypanosoma cruzi; Animals; Argentina; Chagas Disease; Disease Reservoirs; Dogs; Feeding Behavior; Female; Humans; Insecticides; Male; Nitriles; Pyrethrins; Trypanosoma
Año:2006
Volumen:74
Número:5
Página de inicio:766
Página de fin:771
Título revista:American Journal of Tropical Medicine and Hygiene
Título revista abreviado:Am. J. Trop. Med. Hyg.
ISSN:00029637
CODEN:AJTHA
CAS:deltamethrin, 52918-63-5; decamethrin, 52820-00-5; Insecticides; Nitriles; Pyrethrins
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00029637_v74_n5_p766_Reithinger

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Citas:

---------- APA ----------
Reithinger, R., Ceballos, L., Stariolo, R., Davies, C.R. & Gürtler, R.E. (2006) . Extinction of experimental Triatoma infestans populations following continuous exposure to dogs wearing deltamethrin-treated collars. American Journal of Tropical Medicine and Hygiene, 74(5), 766-771.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00029637_v74_n5_p766_Reithinger [ ]
---------- CHICAGO ----------
Reithinger, R., Ceballos, L., Stariolo, R., Davies, C.R., Gürtler, R.E. "Extinction of experimental Triatoma infestans populations following continuous exposure to dogs wearing deltamethrin-treated collars" . American Journal of Tropical Medicine and Hygiene 74, no. 5 (2006) : 766-771.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00029637_v74_n5_p766_Reithinger [ ]
---------- MLA ----------
Reithinger, R., Ceballos, L., Stariolo, R., Davies, C.R., Gürtler, R.E. "Extinction of experimental Triatoma infestans populations following continuous exposure to dogs wearing deltamethrin-treated collars" . American Journal of Tropical Medicine and Hygiene, vol. 74, no. 5, 2006, pp. 766-771.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00029637_v74_n5_p766_Reithinger [ ]
---------- VANCOUVER ----------
Reithinger, R., Ceballos, L., Stariolo, R., Davies, C.R., Gürtler, R.E. Extinction of experimental Triatoma infestans populations following continuous exposure to dogs wearing deltamethrin-treated collars. Am. J. Trop. Med. Hyg. 2006;74(5):766-771.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00029637_v74_n5_p766_Reithinger [ ]