Improved vector control of Triatoma infestans limited by emerging pyrethroid resistance across an urban-to-rural gradient in the Argentine Chaco

Autor: María Sol Gaspe, Marta Victoria Cardinal, María del Pilar Fernández, Claudia Viviana Vassena, Pablo Luis Santo-Orihuela, Gustavo Fabián Enriquez, Alejandra Alvedro, Mariano Alberto Laiño, Julieta Nattero, Julián Antonio Alvarado-Otegui, Natalia Paula Macchiaverna, María Carla Cecere, Héctor Freilij, Ricardo Esteban Gürtler
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Parasites & Vectors, Vol 14, Iss 1, Pp 1-18 (2021)
Druh dokumentu: article
ISSN: 1756-3305
DOI: 10.1186/s13071-021-04942-9
Popis: Abstract Background The sustainable elimination of Triatoma infestans in the Gran Chaco region represents an enduring challenge. Following the limited effects of a routine pyrethroid insecticide spraying campaign conducted over 2011–2013 (first period) in Avia Terai, an endemic municipality with approximately 2300 houses, we implemented a rapid-impact intervention package to suppress house infestation across the urban-to-rural gradient over 2015–2019 (second period). Here, we assess their impacts and whether persisting infestations were associated with pyrethroid resistance. Methods The 2011–2013 campaign achieved a limited detection and spray coverage across settings (
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