Urban ecology of Triatoma infestans in San Juan, Argentina

Vallvé, Silvana L.; Rojo, Héctor; Wisnivesky‐Colli, Cristina

doi:10.1590/s0074-02761996000400003

Cited by 33 publications

(22 citation statements)

References 7 publications

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“…Although such studies are rare, results from different countries showing similar results have used this methodology to help describe the impact of the disease in the region. [27][28][29] In Colombia, this is particularly important given that previous studies found 23.26% of surveyed households reported having seen the vector, which gives an idea of the magnitude of the problem in the study area.…”

Section: Discussionmentioning

confidence: 99%

Eco-Epidemiology of Chagas Disease in an Endemic Area of Colombia: Risk Factor Estimation, Trypanosoma cruzi Characterization and Identification of Blood-Meal Sources in Bugs

Peña-García

Gómez-Palacio

Triana-Chávez

et al. 2014

The American Journal of Tropical Medicine and Hygiene

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Abstract. The Sierra Nevada de Santa Marta (SNSM) is a mountainous area in Colombia that is highly endemic to Chagas disease. We explored some eco-epidemiological attributes involved in the Chagas disease transmission scenario in three Indigenous communities. An epidemiological survey was done, where parasite infection in reservoirs and insects, Trypanosoma cruzi genotyping, identification of blood-meal sources in intradomiciliary insects using the high-resolution melting technique, and some risk factors were evaluated. The results suggest that several dwelling conditions such as thatched palm roofs and mud walls carried the highest risk of finding intradomiciliary Rhodnius prolixus, which 56.41% were infected with T. cruzi and fed with human blood. Moreover, T. cruzi Ia was the most frequent haplotype found in insects. These results indicate the existence of a domestic T. cruzi transmission cycle that does not overlap with the sylvatic cycle, and highlight the need for efficient entomological control focused to this area.

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Section: Discussionmentioning

confidence: 99%

Eco-Epidemiology of Chagas Disease in an Endemic Area of Colombia: Risk Factor Estimation, Trypanosoma cruzi Characterization and Identification of Blood-Meal Sources in Bugs

Peña-García

Gómez-Palacio

Triana-Chávez

et al. 2014

The American Journal of Tropical Medicine and Hygiene

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“…Dengue has primarily been a disease of urban areas, while Chagas predominates in rural settings. Chagas transmission has also occasionally been found on the fringes of peri-urban areas, and the pathogen and vector do occur in some large urban areas, but natural transmission involving humans is rarely documented 27,28 .…”

Section: The Ecology Of Dengue and Chagas Diseasementioning

confidence: 99%

The ecological dimensions of vector-borne disease research and control

Ellis

Wilcox

2009

Cad. Saúde Pública

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“…The prevalence of T. infestans in specific areas of northern Argentina, Bolivia, and Paraguay are recurrent after spraying with pyrethroid insecticides. Additionally, resistance has been reported during the last decade [27]. At present, the use of synthetic chemicals for controlling insects and arthropods raises several environmental and human health concerns.…”

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confidence: 99%

Essential Oils of Medicinal Plants from the Central Andes of Argentina: Chemical Composition, and Antifungal, Antibacterial, and Insect‐Repellent Activities

Lima

López

Luna

et al. 2011

Chemistry & Biodiversity

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The antifungal, antibacterial, and insect-repellent activities of the essential oils (EOs) of Acantholippia seriphioides, Artemisia mendozana, Gymnophyton polycephalum, Satureja parvifolia, Tagetes mendocina, and Lippia integrifolia, collected in the Central Andes area, province of San Juan, Argentina, were investigated. The dermatophytes Microsporum gypseum, Trichophyton mentagrophytes, and T. rubrum were inhibited by the EOs of G. polycephalum, L. integrifolia, and S. parvifolia, with minimum inhibitory concentrations (MICs) between 31.2 and 1000 μg/ml. Moreover, all EOs presented moderate activity against the bacteria tested, and the L. integrifolia and G. polycephalum EOs showed excellent repellent properties against Triatoma infestans, the Chagas disease vector, with repellency values between 60 and 100%. The A. seriphioides, G. polycephalum, and L. integrifolia EOs, obtained by hydrodistillation, were characterized by GC-FID and GC/MS analyses. The highest number of components (40) was identified in L. integrifolia EO, which, along with that of A. seriphioides, contained important amounts of oxygenated monoterpenes (44.35 and 29.72%, resp.). Thymol (27.61%) and carvacrol (13.24%) were the main components of A. seriphioides EO, and borneol, lippifoli-1(6)-en-5-one, and terpinen-4-ol (>8.5%) were the principal compounds of L. integrifolia EO. These results support the idea that oxygenated monoterpenes are the bioactive fractions of the EOs. Finally, the study shows that these Andean species might be used to treat superficial fungal infections and to improve the local Chagas disease situation by vector-control.

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Urban ecology of Triatoma infestans in San Juan, Argentina

Cited by 33 publications

References 7 publications

Eco-Epidemiology of Chagas Disease in an Endemic Area of Colombia: Risk Factor Estimation, Trypanosoma cruzi Characterization and Identification of Blood-Meal Sources in Bugs

Eco-Epidemiology of Chagas Disease in an Endemic Area of Colombia: Risk Factor Estimation, Trypanosoma cruzi Characterization and Identification of Blood-Meal Sources in Bugs

The ecological dimensions of vector-borne disease research and control

Essential Oils of Medicinal Plants from the Central Andes of Argentina: Chemical Composition, and Antifungal, Antibacterial, and Insect‐Repellent Activities

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