Sandfly fauna in an area endemic for visceral leishmaniasis in Aracaju, State of Sergipe, Northeast Brazil

Revista da Sociedade Brasileira de Medicina Tropical

Fundação Oswaldo Cruz, Recife¹  Melo, Claudia Moura de¹  Jeraldo, Verónica de Lourdes Sierpe¹  Cruz, Danilo Esdras Rocha¹  Universidade Estadual Julio de Mesquita Filho, Araraquara¹  Casanova, Claudio¹  Araújo, Edilson Divino de¹  Universidade Federal de Sergipe, Aracaju¹  Pinto, Mara Cristina¹  Góes, Marco Aurélio de Oliveira¹  Secretaria da Saúde do Estado de São Paulo, São Paulo¹  Instituto de Tecnologia e Pesquisa de Sergipe, Aracaju¹  Secretaria de Estado da Saúde do Estado de Sergipe, Aracaju¹  Filho, Sinval Pinto Brandão¹ 

关键词: Phlebotominae;    Sandfly;    Lutzomyia;    Sergipe;   

DOI  :  10.1590/S0037-86822012000300008

学科分类：农业科学（综合）

来源: Sociedade Brasileira de Medicina Tropical

【 摘 要 】

INTRODUCTION: 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.METHODS: 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.RESULTS: 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.CONCLUSIONS: 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.

【 授权许可】

Unknown