de Souza Cristian Ferreira, Quaresma Patrícia Flávia, Andrade Filho Jose Dilermando, Bevilacqua Paula Dias
Programa de Pós-Graduação em Medicina Veterinária, Departamento de Veterinária, Universidade Federal de Viçosa, Avenida Peter Henry Rolfs, s/n, Campus Universitário, CEP: 36570-000 Viçosa, MG, Brazil.
Laboratório de Leishmanioses, Centro de Pesquisas René Rachou/Fiocruz, Avenida Augusto de Lima, 1715, Barro Preto, CP1743, CEP: 30190-002 Belo Horizonte, MG, Brazil.
Acta Trop. 2014 Jun;134:72-9. doi: 10.1016/j.actatropica.2014.02.019. Epub 2014 Mar 5.
This work is characterized by an entomological research and an investigation on whether seasonal behaviours can be associated to the phlebotomine fauna found in the urban area of Timóteo-MG - an endemic focus of tegumentary leishmaniasis (TL). The analysis of the seasonal behaviour of sand flies has taken into account the following climatic variables: rainfall, relative humidity and temperature. Automatic light traps were installed in households between 2009 and 2010. The sand fly species with the highest number captured was Lutzomyia whitmani (66.5%), a TL vector species, whose abundance has provided strong evidences that this species is the main vector of TL in the municipality of Timóteo, with its cycle of transmission developing in its urban area. Amongst the results observed in the analyses of seasonal behaviour, only temperature conveyed particular association between seasonal occurrence of sand flies and climate variables. The findings of this study may assist the local epidemiological surveillance agency in defining strategies and directing efforts for controlling these insects.
这项工作的特点是进行了一项昆虫学研究,并调查了季节性行为是否与在蒂莫特奥-米纳斯吉拉斯州城市地区发现的白蛉类群有关,该地区是皮肤利什曼病(TL)的一个地方性疫源地。对白蛉季节性行为的分析考虑了以下气候变量:降雨量、相对湿度和温度。2009年至2010年期间,在家庭中安装了自动诱虫灯。捕获数量最多的白蛉物种是惠氏罗蛉(66.5%),这是一种传播皮肤利什曼病的媒介物种,其数量众多有力地证明了该物种是蒂莫特奥市皮肤利什曼病的主要传播媒介,其传播周期在城市地区发生。在季节性行为分析中观察到的结果中,只有温度显示了白蛉季节性出现与气候变量之间的特定关联。本研究的结果可能有助于当地的流行病学监测机构确定控制这些昆虫的策略并指导相关工作。