Results: 10

Control of pyrethroid-resistant populations of Triatoma infestans, the main vector of Trypanosoma cruzi, by treating dogs with fluralaner in the Argentine Chaco

Med. vet. entomol; 36 (2), 2022
We assessed whether fluralaner administered to outbred healthy dogs reduced or supressed site infestation and abundance of pyrethroid-resistant populations of Triatoma infestans Klug (Heteroptera: Reduviidae). We conducted a placebo-controlled before-and-after efficacy trial in 28 infested sites in Caste...

Fluctuating asymmetry and exposure to pyrethroid insecticides in Triatoma infestans populations in northeastern Argentina

Med. vet. entomol; 36 (4), 2022
Exposure to sublethal doses of insecticide may affect biological traits in triatomines. We investigated the effects of toxicological phenotype (pyrethroid resistance status) and exposure to sublethal doses of deltamethrin on two traits of Triatoma infestans Klug (Heteroptera: Reduviidae) using a phenotyp...

Excretion/defecation patterns in Triatoma infestans populations that are, respectively, susceptible and resistant to deltamethrin

Med. vet. entomol; 32 (3), 2018
Pyrethroid resistance has been detected in Triatoma infestans (Klug) (Hemiptera: Reduviidae) specimens from different areas of Argentina and Bolivia. Genes conferring resistance can have a pleiotropic effect with epidemiological and evolutionary consequences. This research studied excretion/defecation pa...

Assessment of the anti-feeding and insecticidal effects of the combination of dinotefuran, permethrin and pyriproxyfen (Vectra® 3D) against Triatoma infestans on rats

Med. vet. entomol; 31 (2), 2017
This study, based on the rat model, was designed to explore the anti-feeding and insecticidal efficacy of a topical ectoparasiticide, dinotefuran-permethrin-pyriproxyfen (DPP), against Triatoma infestans (Hemiptera: Reduviidae), a vector of Trypanosoma cruzi (Trypanosomatida: Trypanosomatidae), for which...

Insecticide-treated durable wall lining (ITWL): future prospects for control of malaria and other vector-borne diseases

Malar. j. (Online); 16 (213), 2017
While long-lasting insecticidal nets (LLINs) and indoor residual spraying (IRS) are the cornerstones of malaria vector control throughout sub-Saharan Africa, there is an urgent need for the development of novel insecticide delivery mechanisms to sustain and consolidate gains in disease reduction and to t...

A methodology based on insecticide impregnated filter paper for monitoring resistance to deltamethrin in Triatoma infestans field populations

Med. vet. entomol; 31 (4), 2017
The domiciliary presence of Triatoma infestans (Klug) (Hemiptera: Reduviidae) after control interventions was reported in recent years. Toxicological studies showed high levels of resistance to pyrethroids suggesting resistance as one of the main causes of deficient control. The aim of the present study ...

Cytochrome P450 associated with insecticideresistance catalyzes cuticular hydrocarbonproduction in Anopheles gambiae

The role of cuticle changes in insecticide resistance in the major malariavector Anopheles gambiae was assessed. The rate of internalization of14C deltamethrin was significantly slower in a resistant strain than in asusceptible strain. Topical application of an acetone insecticide formu-lation to circumv...

Assessment of the anti-feeding and insecticidal effects of the combination of dinotefuran, permethrin and pyriproxyfen (Vectra® 3D) against Triatoma infestans on rats

Med. vet. entomol; 31 (2), 2016
This study, based on the rat model, was designed to explore the anti-feeding and insecticidal efficacy of a topical ectoparasiticide, dinotefuran-permethrin-pyriproxyfen (DPP), against Triatoma infestans (Hemiptera: Reduviidae), a vector of Trypanosoma cruzi (Trypanosomatida: Trypanosomatidae), for which...

Demographic effects of deltamethrin resistance in the Chagas disease vector Triatoma infestans

Med. vet. entomol; 30 (4), 2016
Triatoma infestans (Heteroptera: Reduviidae) Klug is the main vector of Chagas disease in Latin America. Resistance to deltamethrin was reported in Argentina and recently associated with reproductive and longevity trade-offs. The objectives of the present study were to describe the demographic consequenc...

Ten years (2004–2014) of Chagas disease surveillance and vector control in Ecuador: successes and challenges

Trop. med. int. health; 21 (1), 2016
objective To describe the current situation of Chagas disease in Ecuador and to evaluate theimpact of vector control for the period 2004–2014.methods Since 2004, the Ministry of Public Health has formalized activities for the surveillanceand control of Chagas disease and we analyzed here available reco...