ArticlePLoS neglected tropical diseases2022
Estimating the genetic structure of Triatoma dimidiata (Hemiptera: Reduviidae) and the transmission dynamics of Trypanosoma cruzi in Boyacá, eastern Colombia.
Article in PLoS neglected tropical diseases, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed.
- Molecular characterisation of Trypanosoma cruzi in Triatoma dimidiata from a highland locality in western PanamáMemorias do Instituto Oswaldo Cruz · 2026Article
- 12S rRNA based phylogeny and genetic diversity of Haemaphysalis spinigera, the primary vector for Kyasanur forest disease in India.Scientific reports · 2025Article
- Characterizing the transmission dynamics of Trypanosoma cruzi in Triatoma sanguisuga collected from dog kennels in southern Texas.Parasites & vectors · 2025Article
- Multilocus analysis uncovers the evolution of the Rhodniini tribe, vectors of Trypanosoma cruzi.Scientific reports · 2025Article
- First Report of the L925I kdr Mutation Associated with Pyrethroid Resistance in Genetically DistinctTropical medicine and infectious disease · 2025Article
- Exploring Trypanosoma cruzi transmission dynamics in an acute Chagas disease outbreak using next-generation sequencing.Parasites & vectors · 2024Article
- Ecoepidemiology of Chagas Disease in a Biological Corridor in Southeastern Mexico: A Promising Approach to Understand the Risk of Chagas Disease.Journal of parasitology research · 2024Article
- Article
- Laboratory Evaluation and Field Feasibility of Micro-Encapsulated Insecticide Effect onInsects · 2022Article
- Interrogating the transmission dynamics ofFrontiers in cellular and infection microbiology · 2022Article
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12 authors.
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Abstract
Chagas disease is considered a public health issue in Colombia, where many regions are endemic. Triatoma dimidiata is an important vector after Rhodnius prolixus, and it is gaining importance in Boyacá, eastern Colombia. Following the recent elimination of R. prolixus in the region, it is pivotal to understand the behavior of T. dimidiata and the transmission dynamics of T. cruzi. We used qPCR and Next Generation Sequencing (NGS) to evaluate T. cruzi infection, parasite load, feeding profiles, and T. cruzi genotyping for T. dimidiata specimens collected in nine municipalities in Boyacá and explored T. dimidiata population genetics. We found that T. dimidiata populations are composed by a single population with similar genetic characteristics that present infection rates up to 70%, high parasite loads up to 1.46 × 109 parasite-equivalents/mL, a feeding behavior that comprises at least 17 domestic, synanthropic and sylvatic species, and a wide diversity of TcI genotypes even within a single specimen. These results imply that T. dimidiata behavior is similar to other successful vectors, having a wide variety of blood sources and contributing to the circulation of different genotypes of the parasite, highlighting its importance for T. cruzi transmission and risk for humans. In the light of the elimination of R. prolixus in Boyacá and the results we found, we suggest that T. dimidiata should become a new target for vector control programs. We hope this study provides enough information to enhance surveillance programs and a future effective interruption of T. cruzi vector transmission in endemic regions.
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