Journal
AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
Volume 93, Issue 5, Pages 994-997Publisher
AMER SOC TROP MED & HYGIENE
DOI: 10.4269/ajtmh.15-0156
Keywords
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Funding
- Brazilian National Research Council (CNPq)
- DCR fellowship
- PROEP/IOC/CNPq programs
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [2010/17027-0, 2011/22378-0]
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [11/22378-0] Funding Source: FAPESP
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We used the gut contents of triatomines collected from rural areas of Ceara State, northeastern Brazil, to identify their putative hosts via vertebrate cytb gene sequencing. Successful direct sequencing was obtained for 48% of insects, comprising 50 Triatoma brasiliensis, 7 Triatoma pseudomaculata, and 1 Rhodnius nasutus. Basic local alignment search tool (BLAST) procedure revealed that domestic animals, such as chickens (Gallus gallus) and goats (Capra hircus), are the main food source, including in sylvatic environment. Native hosts were also detected in peridomestic environment such as reptiles (Tropidurus sp. and Iguana iguana) and the Galen spixii (Rodentia: Caviidae). The role of goats and Galea spixii in Chagas disease epidemiology calls for further studies, because these mammals likely link the sylvatic and domestic Trypanosoma cruzi cycles.
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