Spatial distribution of triatomines in domiciles of an urban area of the Brazilian Southeast Region

Memórias do Instituto Oswaldo Cruz
João Victor Leite DiasL Diotaiuti

Abstract

Reports of triatomine infestation in urban areas have increased. We analysed the spatial distribution of infestation by triatomines in the urban area of Diamantina, in the state of Minas Gerais, Brazil. Triatomines were obtained by community-based entomological surveillance. Spatial patterns of infestation were analysed by Ripley's K function and Kernel density estimator. Normalised difference vegetation index (NDVI) and land cover derived from satellite imagery were compared between infested and uninfested areas. A total of 140 adults of four species were captured (100 Triatoma vitticeps, 25 Panstrongylus geniculatus, 8 Panstrongylus megistus, and 7 Triatoma arthurneivai specimens). In total, 87.9% were captured within domiciles. Infection by trypanosomes was observed in 19.6% of 107 examined insects. The spatial distributions ofT. vitticeps, P. geniculatus, T. arthurneivai, and trypanosome-positive triatomines were clustered, occurring mainly in peripheral areas. NDVI values were statistically higher in areas infested by T. vitticeps and P. geniculatus. Buildings infested by these species were located closer to open fields, whereas infestations of P. megistus and T. arthurneivai were closer to bare soil. Human occupation and ...Continue Reading

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Citations

Sep 7, 2016·Revista Da Sociedade Brasileira De Medicina Tropical·João Victor Leite DiasJoão Carlos Pinto Dias
Jul 26, 2018·Revista Do Instituto De Medicina Tropical De São Paulo·Walter Ceretti-JuniorMauro Toledo Marrelli
Aug 1, 2018·International Journal of Environmental Health Research·Anderson A EduardoPablo A Martinez
Oct 27, 2018·PLoS Neglected Tropical Diseases·Andréia Mantovani Ferro E SilvaMax Jean de Ornelas Toledo
Dec 22, 2017·Revista brasileira de epidemiologia = Brazilian journal of epidemiology·Alcinês da Silva SousaNelson Veiga Gonçalves
Aug 11, 2020·PLoS Neglected Tropical Diseases·Andreas BenderCatherine L Moyes
Nov 30, 2019·Revista Da Sociedade Brasileira De Medicina Tropical·Tatiene Rossana Móta SilvaRafael Antonio Nascimento Ramos
Jul 2, 2020·Revista da Escola de Enfermagem da U S P·Luana Pastana CardosoSuzana Rosa André
Nov 19, 2020·Revista Da Sociedade Brasileira De Medicina Tropical·Madson Huilber da Silva MoraesDionatas Ulises de Oliveira Meneguetti

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Methods Mentioned

BETA
optical microscopy

Software Mentioned

SPRING
TerraView
Google [UNK]
GraphPad

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