ArticleParasites & vectors2018
Triatoma brasiliensis Neiva, 1911: food sources and diversity of Trypanosoma cruzi in wild and artificial environments of the semiarid region of Ceará, northeastern Brazil.
Article in Parasites & vectors, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.
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Who cites it
18 citing papers in PubMed, 2 syntheses or guidelines pooled it, 40 citations in OpenAlex.
- Distribution, host origin, and transmission cycles of Trypanosoma cruzi genotypes in the State of Rio Grande do Norte, Brazil.Revista da Sociedade Brasileira de Medicina Tropical · 2025Pooled it
- Effects of cattle on vector-borne disease risk to humans: A systematic review.PLoS neglected tropical diseases · 2023Pooled it
- Who Feeds theMicroorganisms · 2026Article
- The complexity of the population dynamics of Triatoma brasiliensis in rural north-east Brazil indicated by genetic characterisation.Memorias do Instituto Oswaldo Cruz · 2026Article
- Entomological indicators and food sources of triatomines in the Brazilian semi-arid region.Revista da Sociedade Brasileira de Medicina Tropical · 2024Article
- "Mi Casa, Tu Casa": the coati nest as a hub of Trypanosoma cruzi transmission in the southern Pantanal biome revealed by molecular blood meal source identification in triatomines.Parasites & vectors · 2023Article
- Spatial analysis of the natural infection index for Triatomines and the risk of Chagas disease transmission in Northeastern Brazil.Revista do Instituto de Medicina Tropical de Sao Paulo · 2023Article
- Temporal assessment of entomological surveillance of Trypanosoma cruzi vectors in an endemic area of northeastern Brazil.PloS one · 2023Observational
- High Parasitic Loads Quantified in SylvaticPathogens (Basel, Switzerland) · 2022Article
- Molecular characterization ofJournal of parasitic diseases : official organ of the Indian Society for Parasitology · 2022Article
- The connection between Trypanosoma cruzi transmission cycles by Triatoma brasiliensis brasiliensis: A threat to human health in an area susceptible to desertification in the Seridó, Rio Grande do Norte, Brazil.PLoS neglected tropical diseases · 2021Article
- Drivers of molecular and morphometric variation in Triatoma brasiliensis (Hemiptera: Triatominae): the resolution of geometric morphometrics for populational structuring on a microgeographical scale.Parasites & vectors · 2020Article
- Dynamics of food sources, ecotypic distribution and Trypanosoma cruzi infection in Triatoma brasiliensis from the northeast of Brazil.PLoS neglected tropical diseases · 2020Article
- Fast recovery of house infestation with Triatoma brasiliensis after residual insecticide spraying in a semiarid region of Northeastern Brazil.PLoS neglected tropical diseases · 2020Article
- Comparison of phenol-chloroform and a commercial deoxyribonucleic acid extraction kit for identification of bloodmeal sources from triatomines (Hemiptera: Reduviidae).Revista da Sociedade Brasileira de Medicina Tropical · 2020Article
- Spatial distribution of synanthropic triatomines in Piaui State, Northeastern Brazil.Revista do Instituto de Medicina Tropical de Sao Paulo · 2020Article
- Wide distribution of Trypanosoma cruzi-infected triatomines in the State of Bahia, Brazil.Parasites & vectors · 2019Article
- Enduring extreme climate: Effects of severe drought on Triatoma brasiliensis populations in wild and man-made habitats of the Caatinga.PLoS neglected tropical diseases · 2019Article
Corrections and comments
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Authors and funding
7 authors at 4 institutions in 2 countries.
Funding
Abstract
backgroundKnowledge of triatomine food sources in different ecotopes enables the estimation of T. cruzi transmission risk in diverse environments, as well as its dynamics of dispersion and ecological niche. For Triatoma brasiliensis in the Caatinga, in the northeast of Brazil, seasonal differences influence feeding eclecticism and rates of T. cruzi infection. The objective of the present study was to monitor food sources and to characterize the populations of T. cruzi associated with T. brasiliensis in wild and domestic environments in the Caatinga of northeast Brazil.
methodsA cross-sectional study based on a search for triatomines in wild and domestic environments, was undertaken at five different time periods from 2009 to 2015. Insects from 2015 were used for identification of food sources. Two universal primers, based on the conserved regions of the 12S rRNA locus, were used to amplify fragments of 215 bp. The content of the intestinal tract of triatomines was identified by a comparison between the sequences obtained and those deposited in the GenBank database, using BLAST. In triatomines with parasitological diagnosis of infection by trypanosomatids, xenoculture was performed for the isolation and characterization of strains, using cox2, the amplification of the SL-IL mini-exon intergenic spacer and the polymorphism of the D7 divergent domain of the gene 24αrDNA-LSU.
resultsFood sources were identified in 76.3% (213/279) T. brasiliensis specimens sampled in 2015. The most frequent sources in a total of 20 vertebrate species were: rodents (58%, 123/213), ruminants (30%, 64/213) and cats (6%, 12/213). A total of 49% (44/89) of the samples of T. cruzi isolated in the period from 2009 to 2015 were characterized: TcII (43%, 19/44), TcI (41%, 18/44) and TcIII (16%, 7/44).
conclusionsThe feeding eclecticism of T. brasiliensis shows its importance in maintaining the transmission dynamics of T. cruzi, with evidence of intense circulation between anthropic and wild environments. Attention should be placed on the association among T. brasiliensis, rodents and ruminants, in addition to the presence of TcIII in the study region.
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