ArticleParasites & vectors2016
Untangling the transmission dynamics of primary and secondary vectors of Trypanosoma cruzi in Colombia: parasite infection, feeding sources and discrete typing units.
Article in Parasites & vectors, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 2 of them syntheses that pooled it.
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Who cites it
43 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Systematic review on the biology, ecology, genetic diversity and parasite transmission potential of Panstrongylus geniculatus (Latreille 1811) in Latin America.Memorias do Instituto Oswaldo Cruz · 2021Pooled it
- Heterogeneity of Trypanosoma cruzi infection rates in vectors and animal reservoirs in Colombia: a systematic review and meta-analysis.Parasites & vectors · 2019Pooled it
- Co-circulation of Trypanosoma cruzi and Leishmania spp. in Northwestern Colombia, a major migratory corridor.PLoS neglected tropical diseases · 2026Article
- Detection of Trypanosoma spp. and Leishmania spp. in bats from the department of Atlantico, Colombia.Revista peruana de medicina experimental y salud publica · 2026Article
- Circulation of Trypanosoma cruzi TcI in wild populations and those with a tendency toward domiciliation of Panstrongylus geniculatus (Latreille, 1811) (Hemiptera; Reduviidae) in the department of Atlántico, Colombia.Revista peruana de medicina experimental y salud publica · 2026Article
- Forest fragment size shapesOne health (Amsterdam, Netherlands) · 2025Article
- Genetic Identification of Brazilian Mammalian Hosts ofPathogens (Basel, Switzerland) · 2025Article
- Triatoma venosa and Panstrongylus geniculatus challenge the certification of interruption of vectorial Trypanosoma cruzi transmission by Rhodnius prolixus in eastern Colombia.PLoS neglected tropical diseases · 2025Article
- Home invasion of triatomines (Hemiptera: Reduviidae) in the urban area of Mato Grosso, Brazil.Revista da Sociedade Brasileira de Medicina Tropical · 2025Article
- The genome sequence of the kissing bug,Wellcome open research · 2025Article
- Multilocus genetic analysis ofParasite epidemiology and control · 2024Article
- Transmission ecology of Trypanosoma cruzi by Rhodnius prolixus (Reduviidae: Triatominae) infesting palm-tree species in the Colombian Orinoco, indicates risks to human populations.PLoS neglected tropical diseases · 2024Article
- The importance of estimating the burden of disease from foodborne transmission of Trypanosoma cruzi.PLoS neglected tropical diseases · 2024Review
- A phased genome assembly of a Colombian Trypanosoma cruzi TcI strain and the evolution of gene families.Scientific reports · 2024Article
- Article
- An overview of the trypanosomatid (Kinetoplastida: Trypanosomatidae) parasites infecting several mammal species in Colombia.Parasites & vectors · 2022Article
- Altitudinal distribution and species richness of triatomines (Hemiptera:Reduviidae) in Colombia.Parasites & vectors · 2022Review
- [Circulación de Leishmania infantum y Trypanosoma cruzi en perros domésticos de áreas urbanas de Sincelejo, región Caribe de Colombia].Biomedica : revista del Instituto Nacional de Salud · 2022Article
- Tele-entomology and tele-parasitology: A citizen science-based approach for surveillance and control of Chagas disease in Venezuela.Parasite epidemiology and control · 2022Article
- Estimating the genetic structure of Triatoma dimidiata (Hemiptera: Reduviidae) and the transmission dynamics of Trypanosoma cruzi in Boyacá, eastern Colombia.PLoS neglected tropical diseases · 2022Article
Corrections and comments
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Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundTrypanosoma cruzi is the causative agent of Chagas disease. Due to its genetic diversity has been classified into six Discrete Typing Units (DTUs) in association with transmission cycles. In Colombia, natural T. cruzi infection has been detected in 15 triatomine species. There is scarce information regarding the infection rates, DTUs and feeding preferences of secondary vectors. Therefore, the aim of this study was to determine T. cruzi infection rates, parasite DTU, ecotopes, insect stages, geographical location and bug feeding preferences across six different triatomine species.
methodsA total of 245 insects were collected in seven departments of Colombia. We conducted molecular detection and genotyping of T. cruzi with subsequent identification of food sources. The frequency of infection, DTUs, TcI genotypes and feeding sources were plotted across the six species studied. A logistic regression model risk was estimated with insects positive for T. cruzi according to demographic and eco-epidemiological characteristics.
resultsWe collected 85 specimens of Panstrongylus geniculatus, 77 Rhodnius prolixus, 37 R. pallescens, 34 Triatoma maculata, 8 R. pictipes and 4 T. dimidiata. The overall T. cruzi infection rate was 61.2% and presented statistical associations with the departments Meta (OR: 2.65; 95% CI: 1.69-4.17) and Guajira (OR: 2.13; 95% CI: 1.16-3.94); peridomestic ecotope (OR: 2.52: 95% CI: 1.62-3.93); the vector species P. geniculatus (OR: 2.40; 95% CI: 1.51-3.82) and T. maculata (OR: 2.09; 95% CI: 1.02-4.29); females (OR: 2.05; 95% CI: 1.39-3.04) and feeding on opossum (OR: 3.15; 95% CI: 1.85-11.69) and human blood (OR: 1.55; 95% CI: 1.07-2.24). Regarding the DTUs, we observed TcI (67.3%), TcII (6.7%), TcIII (8.7%), TcIV (4.0%) and TcV (6.0%). Across the samples typed as TcI, we detected TcIDom (19%) and sylvatic TcI (75%). The frequencies of feeding sources were 59.4% (human blood); 11.2% (hen); 9.6% (bat); 5.6% (opossum); 5.1% (mouse); 4.1% (dog); 3.0% (rodent); 1.0% (armadillo); and 1.0% (cow).
conclusionsNew scenarios of T. cruzi transmission caused by secondary and sylvatic vectors are considered. The findings of sylvatic DTUs from bugs collected in domestic and peridomestic ecotopes confirms the emerging transmission scenarios in Colombia.
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