English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Background  The identification of  Trypanosoma cruzi  and blood-meal sources in synanthropic triatomines is important to assess the potential risk of Chagas disease transmission. We identified  T. cruzi  infection and blood-meal sources of triatomines caught in and around houses in the state of Bahia, northeastern Brazil, and mapped the occurrence of infected triatomines that fed on humans and domestic animals.    Methods  Triatominae bugs were manually captured by trained agents from the Epidemiologic Surveillance team of Bahia State Health Service between 2013 and 2014. We applied conventional PCR to detect  T. cruzi  and blood-meal sources (dog, cat, human and bird) in a randomized sample of triatomines. We mapped triatomine distribution and analyzed vector hotspots with kernel density spatial analysis.    Results  In total, 5906 triatomines comprising 15 species were collected from 127 out of 417 municipalities in Bahia. The molecular analyses of 695 triatomines revealed a ~10%  T. cruzi  infection rate, which was highest in the  T. brasiliensis  species complex. Most bugs were found to have fed on birds (74.2%), and other blood-meal sources included dogs (6%), cats (0.6%) and humans (1%).  Trypanosoma cruzi -infected triatomines that fed on humans were detected inside houses. Spatial analysis showed a wide distribution of  T. cruzi -infected triatomines throughout Bahia; triatomines that fed on dogs, humans, and cats were observed mainly in the northeast region.    Conclusions  Synanthropic triatomines have a wide distribution and maintain the potential risk of  T. cruzi  transmission to humans and domestic animals in Bahia. Ten species were recorded inside houses, mainly  Triatoma sordida ,  T. pseudomaculata,  and the  T. brasiliensis  species complex. Molecular and spatial analysis are useful to reveal  T. cruzi  infection and blood-meal sources in synanthropic triatomines, identifying areas with ongoing threat for parasite transmission and improving entomological surveillance strategies.

Wide distribution of Trypanosoma cruzi-infected triatomines in the State of Bahia, Brazil