Evaluation of natural foci of Panstrongylus megistus in a forest fragment in Porto Alegre, State of Rio Grande do Sul, Brazil
AUTOR(ES)
Santos Jr, Jose Eloy dos, Viola, Mariana Gubert, Lorosa, Elias Seixas, Machado, Evandro Marques de Menezes, Ruas Neto, Antonio Leite, Corseuil, Elio
FONTE
Rev. Soc. Bras. Med. Trop.
DATA DE PUBLICAÇÃO
2013-09
RESUMO
Introduction Panstrongylus megistus is commonly found in wild environments of the State of Rio Grande do Sul, Brazil. The aim of this study was to characterize the network of refuges used by triatomine in a forest fragment of Porto Alegre and to identify Trypanosoma cruzi infection, associated hosts and the epidemiological importance of both hosts and triatomines. Methods Techniques including the spool-and-line method and active searching (transects) were used to identify natural foci. Results The food source for each triatomine was determined using the precipitin test, and the infection of marsupials was determined by xenodiagnosis. A total of 33 adults (domestic environment) and 27 nymphs (wild environment) of P. megistus were found in addition to 43 Didelphis albiventris specimens. The infection rates of triatomine adults, triatomine nymphs and opossums with T. cruzi I were 64%, 73% and 69%, respectively. Birds, rodents and opossums were the main resources used by triatomine. Conclusions This work presents the first characterization of a natural focus of P. megistus in Rio Grande do Sul. The natural characteristics of this focus and its implication in the transmission of T. cruzi are discussed.
Documentos Relacionados
- First report of Angiostrongylus cantonensis in Porto Alegre, State of Rio Grande do Sul, Southern Brazil
- Airborne fungi in the city of Porto Alegre, Rio Grande do Sul, Brazil
- Avaliação da preferência alimentar de Panstrongylus megistus (Burmeister, 1835) e infecção por Trypanosoma cruzi (Chagas, 1909), num fragmento de floresta em Porto Alegre, Rio Grande do Sul, Brasil
- Fungos anemófilos na cidade de Porto Alegre, Rio Grande do Sul, Brasil
- A doença mental feminina em Porto Alegre, Rio Grande do Sul, Brasil (1870-1910)