Extinction of experimental Triatoma infestans populations following continuous exposure to dogs wearing deltamethrin-treated collars
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 allowe...
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2006
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00029637_v74_n5_p766_Reithinger http://hdl.handle.net/20.500.12110/paper_00029637_v74_n5_p766_Reithinger |
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paper:paper_00029637_v74_n5_p766_Reithinger2023-06-08T14:23:20Z Extinction of experimental Triatoma infestans populations following continuous exposure to dogs wearing deltamethrin-treated collars 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 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. 2006 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00029637_v74_n5_p766_Reithinger http://hdl.handle.net/20.500.12110/paper_00029637_v74_n5_p766_Reithinger |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
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 |
| spellingShingle |
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 Extinction of experimental Triatoma infestans populations following continuous exposure to dogs wearing deltamethrin-treated collars |
| topic_facet |
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 |
| description |
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. |
| title |
Extinction of experimental Triatoma infestans populations following continuous exposure to dogs wearing deltamethrin-treated collars |
| title_short |
Extinction of experimental Triatoma infestans populations following continuous exposure to dogs wearing deltamethrin-treated collars |
| title_full |
Extinction of experimental Triatoma infestans populations following continuous exposure to dogs wearing deltamethrin-treated collars |
| title_fullStr |
Extinction of experimental Triatoma infestans populations following continuous exposure to dogs wearing deltamethrin-treated collars |
| title_full_unstemmed |
Extinction of experimental Triatoma infestans populations following continuous exposure to dogs wearing deltamethrin-treated collars |
| title_sort |
extinction of experimental triatoma infestans populations following continuous exposure to dogs wearing deltamethrin-treated collars |
| publishDate |
2006 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00029637_v74_n5_p766_Reithinger http://hdl.handle.net/20.500.12110/paper_00029637_v74_n5_p766_Reithinger |
| _version_ |
1768546751165235200 |