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

Authors :
Verónica de Lourdes Sierpe Jeraldo
Marco Aurélio de Oliveira Góes
Claudio Casanova
Claudia Moura de Melo
Edilson Divino de Araújo
Sinval Pinto Brandão Filho
Danilo Esdras Rocha Cruz
Mara Cristina Pinto
Source :
Revista da Sociedade Brasileira de Medicina Tropical, Vol 45, Iss 3, Pp 318-322 (2012)
Publication Year :
2012
Publisher :
Sociedade Brasileira de Medicina Tropical (SBMT), 2012.

Abstract

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.

Details

Language :
English
ISSN :
16789849 and 00378682
Volume :
45
Issue :
3
Database :
Directory of Open Access Journals
Journal :
Revista da Sociedade Brasileira de Medicina Tropical
Publication Type :
Academic Journal
Accession number :
edsdoj.3166a3a674d4402f8f22629de026f4bb
Document Type :
article
Full Text :
https://doi.org/10.1590/S0037-86822012000300008