Geographic distribution of chagas disease vectors in Brazil based on ecological niche modeling.
TLDR
All environmental conditions in the country are favorable to one or more of the species analyzed, such that almost nowhere is Chagas transmission risk negligible.Abstract:
Although Brazil was declared free from Chagas disease transmission by the domestic vector Triatoma infestans, human acute cases are still being registered based on transmission by native triatomine species. For a better understanding of transmission risk, the geographic distribution of Brazilian triatomines was analyzed. Sixteen out of 62 Brazilian species that both occur in >20 municipalities and present synanthropic tendencies were modeled based on their ecological niches. Panstrongylus geniculatus and P. megistus showed broad ecological ranges, but most of the species sort out by the biome in which they are distributed: Rhodnius pictipes and R. robustus in the Amazon; R. neglectus, Triatoma sordida, and T. costalimai in the Cerrado; R. nasutus, P. lutzi, T. brasiliensis, T. pseudomaculata, T. melanocephala, and T. petrocchiae in the Caatinga; T. rubrovaria in the southern pampas; T. tibiamaculata and T. vitticeps in the Atlantic Forest. Although most occurrences were recorded in open areas (Cerrado and Caatinga), our results show that all environmental conditions in the country are favorable to one or more of the species analyzed, such that almost nowhere is Chagas transmission risk negligible.read more
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Journal ArticleDOI
Atlas of Mexican Triatominae (Reduviidae: Hemiptera) and vector transmission of Chagas disease
Janine M. Ramsey,A. Townsend Peterson,Oscar Carmona-Castro,David A. Moo-Llanes,Yoshinori Nakazawa,Morgan Butrick,Ezequiel Tun-Ku,Keynes de la Cruz-Félix,Carlos N. Ibarra-Cerdeña +8 more
TL;DR: A state-of-knowledge atlas of Mexican triatomines is produced and their geographic associations with T. cruzi, human demographics and landscape modification are analyzed, showing high tolerance to human-modified habitats and broadened historical ranges.
Journal ArticleDOI
Advances and Limitations of Disease Biogeography Using Ecological Niche Modeling.
Luis E. Escobar,Meggan E. Craft +1 more
TL;DR: This review includes selected state-of-the-science approaches and tools, providing a short guide to designing studies incorporating information on the type and quality of the input data, and encourages users to explore and test diverse algorithms for more informed conclusions.
Book ChapterDOI
Evolution, Systematics, and Biogeography of the Triatominae, Vectors of Chagas Disease.
Fernando A. Monteiro,Christiane Weirauch,Márcio Felix,Cristiano Lazoski,Fernando Abad-Franch +4 more
TL;DR: This chapter discusses the current understanding of how, how many times, and when the blood-feeding habit might have evolved among the Reduviidae, and proposes a global synthesis of the biogeography of the Triatominae.
Journal ArticleDOI
Characterization of the microbiota in the guts of Triatoma brasiliensis and Triatoma pseudomaculata infected by Trypanosoma cruzi in natural conditions using culture independent methods
Marcia Gumiel,Fabio Faria da Mota,Vanessa de Sousa Rizzo,Otília Sarquis,Daniele P. Castro,Marli Maria Lima,Eloi S. Garcia,Nicolas Carels,Patrícia Azambuja +8 more
TL;DR: Culture independent methods have shown that the bacterial composition of the microbiota in the guts of peridomestic triatomines is made up by only few bacterial species.
Journal ArticleDOI
Karyotype of Triatoma melanocephala Neiva and Pinto (1923). Does this species fit in the Brasiliensis subcomplex
Kaio Cesar Chaboli Alevi,Priscila Pasqueetto Mendonca,Nathália Paiva Pereira,João Aristeu da Rosa,Maria Tercília Vilela de Azeredo Oliveira +4 more
TL;DR: This study describes the karyotype of the species and proposes the exclusion of T. melanocephala, as well as T. vitticeps and T. tibiamaculata, which also has fragmentation of the X chromosome, from the Brasiliensis subcomplex.
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