Journal ArticleDOI
Food web connections and the transmission cycles of Trypanosoma cruzi and Trypanosoma evansi (Kinetoplastida, Trypanosomatidae) in the Pantanal Region, Brazil
Heitor Miraglia Herrera,Heitor Miraglia Herrera,Fabiana Lopes Rocha,Cristiane Varella Lisboa,Vitor Rademaker,Guilherme Mourão,Ana Maria Jansen +6 more
TLDR
It is proposed that transmission of T. cruzi and T. evansi in the southern Pantanal region takes place via an intricate ecological trophic network involving generalist and specialist mammal species that are linked through a robust food-web connection.Abstract:
We examined by parasitological tests (hemocultures and buffy coat) infection by Trypanosoma cruzi and T. evansi in blood samples from Leopardus pardalis, Cerdocyon thous and domestic dogs. Besides, 25 T. cruzi isolates previously derived from feral pigs and small wild mammals were here characterized by miniexon gene and demonstrated to be in the TcI genotype. Herein, we make an overall analysis of the transmission cycle of both trypanosome species in the light of the assemblage of data collected over the last seven years. The carnivore Nasua nasua was confirmed to play a major role in the transmission cycles of both T. cruzi and T. evansi since it was the species that had the higher prevalence and higher parasitemias by both flagellate species. In addition, our results show that both trypanosomatid species may be found throughout the Pantanal landscape, in all forest strata, as shown by the infection of carnivore, arboreal and terrestrial scansorial marsupial species in complex and seasonal transmission cycles. We propose that transmission of T. cruzi and T. evansi in the southern Pantanal region takes place via an intricate ecological trophic network involving generalist and specialist mammal species that are linked through a robust food-web connection.read more
Citations
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Over Six Thousand Trypanosoma cruzi Strains Classified into Discrete Typing Units (DTUs): Attempt at an Inventory.
TL;DR: In this article, the authors present a systematic review of the literature concerning DTUs and their use in the identification of trypanosoma cruzi, the causative agent of Chagas disease.
Journal ArticleDOI
Systematic Review and Meta-Analysis on the Global Distribution, Host Range, and Prevalence of Trypanosoma Evansi
TL;DR: This study illustrates that T. evansi affects a wide range of domestic and wild animals in Africa, Asia and South America with highest prevalence observed in dromedary camels, with camels as the most affected, followed by buffalo and cattle.
Journal ArticleDOI
The multiple and complex and changeable scenarios of the Trypanosoma cruzi transmission cycle in the sylvatic environment
TL;DR: The results demonstrate the complexity of the Trypanosoma cruzi reservoir system and its transmission strategies, indicating that there is considerably more to be learned regarding ecology of T. cruzi.
Journal ArticleDOI
Trypanosoma cruzi transmission in the wild and its most important reservoir hosts in Brazil
TL;DR: Each locality of T. cruzi infection of free ranging wild mammalian fauna in the five biomes of Brazil showed that each locality, may display distinct enzootiological and epidemiological scenarios that must be taken into account when it comes to establishing control and/or clarification campaigns of the local population.
References
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Journal ArticleDOI
A new consensus for Trypanosoma cruzi intraspecific nomenclature: second revision meeting recommends TcI to TcVI.
Bianca Zingales,Sonia G. Andrade,Briones,David A. Campbell,Egler Chiari,Octavio Fernandes,Felipe Guhl,Eliane Lages-Silva,Andrea M. Macedo,Carlos Renato Machado,Michael A. Miles,A J Romanha,Nancy R. Sturm,Michel Tibayrenc,Alejandro G. Schijman +14 more
TL;DR: In an effort to unify the nomenclature of Trypanosoma cruzi, the causative agent of Chagas disease, an updated system was agreed upon at the Second Satellite Meeting that T. cruzi strains should be referred to by six discrete typing units.
Journal Article
The haematocrit centrifuge technique for the diagnosis of African trypanosomiasis.
TL;DR: Die systematische Speicherung von Teilen des elektronischen Angebots auf anderen Servern bedarf ebenfalls des schriftlichen Einverständnisses der Rechteinhaber.
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Identification of six Trypanosoma cruzi phylogenetic lineages by random amplified polymorphic DNA and multilocus enzyme electrophoresis.
TL;DR: Characterised a geographically and ecologically diverse sample of stocks representative of the breadth of the known clonal diversity of each major lineage of Trypanosoma cruzi, finding that T. cruzi appeared to be subdivided into six discrete typing units, or DTUs, exhibiting distinct geographic and ecological ranges.