Rhodnius stali: new vector infected by Trypanosoma rangeli (Kinetoplastida, Trypanosomatidae)

Investigation of the triatomine (Hemiptera: Triatominae) fauna and its infection by Trypanosoma cruzi Chagas (Kinetoplastida: Trypanosomatidae), in an area with an outbreak of Chagas disease in the Brazilian South-Western Amazon

“…There are confirmed reports of domiciliation in Bolivia, held as the most likely responsible for the transmission of T. cruzi in indigenous communities in Alto Beni (Matias et al 2003). It occurs in the state of Acre (Meneguetti et al 2016) and is also susceptible to infection by T. rangeli, which makes the differential diagnosis of trypanosomatids difficult (Castro et al 2017), which indicate that mixed infections may be occurring in the state. In addition to species belonging to the genus Rhodnius, a nymph of fifth stage, belonging to the genus Eratyrus Stål, 1859 was collected during dissection in A. butyracea and identified as E. mucronatus Stål, 1859.…”

“…Chagas' disease (CD), also known as American trypanosomiasis, is an infectious disease whose etiologic agent is the protozoan Trypanosoma cruzi Chagas, 1909 (Kinetoplastida: Trypanosomatidae) (Chagas 1909;Castro et al 2017) and the vectors are blood-sucking hemipteran insects, belonging to the Hemiptera order, Reduviidae family and Triatominae subfamily (Barbosa et al 2015).…”

Doença De Chagas Na Amazônia: Um Estudo Epidemiológico Na Cidade Da Maior Usina Hidrelétrica Genuinamente Brasileira

“…tanto pelas fezes contaminadas (T. cruzi) quanto pela transmissão salivar (T. rangeli) (GAUNT; MILES, 2000). Além disso, a espécie R. stali que está relacionada à infecção pelo flagelado T. cruzi (GURGEL-GONÇALVES et al, 2012) recentemente foi descrita infectada por T. rangeli (CASTRO et al, 2017). O mesmo acontece para a espécie de R. montenegrensis BILHEIRO et al, 2018), que ainda pode estar infectado concomitantemente pelos dois tripanosomas (BILHEIRO et al, 2018).…”

“…Um estudo feito nesta região mostrou a presença de R. stali estabelecendo colônias no domicílio e peridomicílio na região de Alto Beni, Bolívia, sendo provavelmente o vetor responsável pela soropositividade de doença de Chagas em populações indígenas dessa região (MATIAS et al, 2003). No estado do Acre, essa espécie também já foi descrita infectada por T. rangeli (CASTRO et al, 2017).…”

Triatomines: Trypanosomatids, Bacteria, and Viruses Potential Vectors?

“…T. rangeli is transmitted specially by Triatominae of the Rhodniini tribe. Its metacyclic trypomastigotes were already reported in Rhodnius domesticus, Rhodnius nasutus, Rhodnius neglectus, Rhodnius pallescens, R. prolixus, Rhodnius robustus, Rhodnius brethesi, Rhodnius colombiensis, Rhodnius ecuadoriensis, Rhodnius dalessandroi, Rhodnius pictipes , and Rhodnius neivai salivary glands (Guhl and Vallejo, 2003 ; Vallejo et al, 2009 , 2015 ; Castro et al, 2017 ). Nevertheless, it was also reported in Triatoma carrion, Panstrongylus chinai and Panstrongylus rufotuberculatus species from the Triatominii tribe (Ocaña-Mayorga et al, 2015 ).…”