Laboratório de Doenças Infecciosas e Parasitárias, Instituto de Tecnologia e Pesquisa de Sergipe, Aracaju, SE, Brasil.
Rev Soc Bras Med Trop. 2012 Jun;45(3):318-22. doi: 10.1590/s0037-86822012000300008.
In recent years, visceral leishmaniasis, a major public health problem, has been spreading from the rural to urban areas in many areas of Brazil, including Aracaju, the capital of the State of Sergipe. However, there are no studies of the sandfly fauna in this municipality or its variation over the year.
Phlebotomine sandflies were collected from a rural area of Aracaju from September 2007 to July 2009. Modified CDC ultra-violet (UV) light traps were used to evaluate sandfly monthly distribution and their presence in the domestic and peridomestic environments.
The most abundant species was Lutzomyia longipalpis (90.4%) followed by Evandromyia lenti (9.6%). A chicken shed trap site had the highest proportion of L. longipalpis (51.1%) and large numbers of L. longipalpis were also collected in the houses closest to the chicken shed. There was a positive correlation between monthly rainfall and L. longipalpis abundance.
Lutzomyia longipalpis is the most abundant species and is probably the main vector of the visceral leishmaniasis agent in the rural area of Aracaju. An increase in L. longipalpis frequency was observed during the rainy season. The peridomicile-intradomicile observations corroborate the importance of chicken sheds for the presence of L. longipalpis in the peridomestic environment. The great numbers of L. longipalpis inside the houses confirm the endophilic behaviour of this species and the possibility of visceral transmission in the intradomicile.
近年来，内脏利什曼病作为一个主要的公共卫生问题，已在巴西许多地区从农村蔓延到城市，包括塞尔希培州首府阿拉卡茹。然而，在该市或其全年变化方面，尚无关于沙蝇区系的研究。
2007 年 9 月至 2009 年 7 月，从阿拉卡茹的一个农村地区采集了嗜人按蚊属沙蝇。使用改良的 CDC 紫外线（UV）诱捕器评估每月沙蝇的分布及其在家庭和家庭环境中的存在情况。
最丰富的物种是 Lutzomyia longipalpis（90.4%），其次是 Evandromyia lenti（9.6%）。鸡舍诱捕器的位置具有最高比例的 L. longipalpis（51.1%），并且在靠近鸡舍的房屋中也收集了大量的 L. longipalpis。每月降雨量与 L. longipalpis 丰度之间存在正相关关系。
Lutzomyia longipalpis 是最丰富的物种，可能是阿拉卡茹农村地区内脏利什曼病病原体的主要媒介。在雨季观察到 L. longipalpis 频率增加。在家庭环境中，peri-domestic 观察证实了鸡舍对 L. longipalpis 的存在的重要性。房屋内大量的 L. longipalpis 证实了该物种的内栖习性以及内脏传播的可能性。
