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. 2017 Jun 1:59:e27.
doi: 10.1590/S1678-9946201759027.

Entomological survey in the state of Piauí, Northeastern Brazil, reveals intradomiciliary colonization of Triatoma brasiliensis macromelasoma

Silvia Menezes Dos Santos  1   2 , Danielle Misael de Sousa  1 , Jessica Pereira Dos Santos  2   3 , José Felipe Pinheiro do Nascimento Vieira  2 , Teresa Cristina Monte Gonçalves  1 , Jacenir Reis Dos Santos-Mallet  1 , Filipe Anibal Carvalho-Costa  2   3
Affiliations

Entomological survey in the state of Piauí, Northeastern Brazil, reveals intradomiciliary colonization of Triatoma brasiliensis macromelasoma

Silvia Menezes Dos Santos et al. Rev Inst Med Trop Sao Paulo. .

Abstract

This survey aimed to assess the presence of triatomine vectors of Chagas disease within the rural communities of São João do Piauí, Northeast Brazil. Intradomiciliary and peridomiciliary collection strategies were implemented wherein 279 specimens of Triatoma brasiliensis macromelasoma, both nymph and adult were found in 15 (50%) of the studied homes. Of the intradomiciliary insects, 73 (67.6%) were identified as nymph instars (1st instar [N1]= 6, N2= 14, N3= 28, N4= 7 and N5= 18). In the studied communities, a continuous interaction between triatomine bugs and humans could be shown. It is therefore urgent that suitable strategies for the control of the triatomine vector are implemented in this area.

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Figures

Figure 1
Figure 1. Map of the state of Piauí, highlighting the municipality of São João do Piauí.
Figure 2
Figure 2. A, arrow. Triatomine nymphs and adults found colonising a house; B, arrow. Ocluded eggs of triatomines found in house interior; C. Highly engorged nymph found in the domestic environment.
Figure 3
Figure 3. Triatoma brasiliensis macromelasoma adult collected in São João do Piauí.
See this image and copyright information in PMC

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