Flebotomíneos (Psychodidae: Phlebotominae) de área endêmica para leishmaniose cutânea e visceral no nordeste do estado do Pará, Brasil

Walter Souza Santos; Fellipe Diogo Ortega; Alves Ribeiro Alves; Veracilda Ribeiro lves; Lourdes Maria Garcez

doi:10.5123/S2176-6223201900059

Authors

Walter Souza Santos Instituto Evandro Chagas/SVS/MS, Seção de Parasitologia, Laboratório de Epidemiologia das Leishmanioses, Ananindeua, Pará, Brasil http://orcid.org/0000-0002-1857-9634
Fellipe Diogo Ortega Instituto Evandro Chagas/SVS/MS, Seção de Parasitologia, Laboratório de Epidemiologia das Leishmanioses, Ananindeua, Pará, Brasil http://orcid.org/0000-0001-5473-2539
Alves Ribeiro Alves Instituto Evandro Chagas/SVS/MS, Seção de Parasitologia, Laboratório de Epidemiologia das Leishmanioses, Ananindeua, Pará, Brasil http://orcid.org/0000-0001-7334-2747
Veracilda Ribeiro lves Instituto Evandro Chagas/SVS/MS, Seção de Parasitologia, Laboratório de Epidemiologia das Leishmanioses, Ananindeua, Pará, Brasil http://orcid.org/0000-0001-7334-2747
Lourdes Maria Garcez Instituto Evandro Chagas/SVS/MS, Seção de Parasitologia, Laboratório de Epidemiologia das Leishmanioses, Ananindeua, Pará, Brasil; Universidade do Estado do Pará, Departamento de Patologia, Belém, Pará, Brasil http://orcid.org/0000-0003-2231-3561

DOI:

https://doi.org/10.5123/S2176-6223201900059

Keywords:

Vector Ecology, Leishmania, Entomology, Epidemiologic Measurements, Environmental Health Surveillance, Seasonal Variation

Abstract

ABSTRACT

INTRODUCTION:

In Tomé-Açu, Pará State, Brazil, where cutaneous and visceral leishmaniasis are endemic, there are no studies on sandfly fauna, and therefore it is important to understand the effect of environmental changes on the cycle of these diseases.

OBJECTIVE:

To conduct an entomological survey inside and outside houses in two rural areas of Tomé-Açu with reported cases of leishmaniasis.

MATERIALS AND METHODS:

Entomological captures were performed during September and October 2014 (dry season) and March 2015 (rainy season), in houses of two rural areas of Tomé-Açu, Ubim and Vila Socorro, using CDC light traps.

RESULTS:

A total of 1,129 sandflies were captured. The specimens were grouped into 12 genera and 35 species, with predominance of Lutzomyia longipalpis (35.0%; 395), the main vector of Leishmania (Leishmania) infantum. Although less frequent, other important species in Leishmania transmission causing cutaneous leishmaniasis were also captured, such as Bichromomyia flaviscutellata, Nyssomyia antunesi, Psychodopygus davisi, Psychodopygus carrerai, Lutzomyia gomezi, and Nyssomyia whitmani. The number of sand flies was higher during the rainy season. In chicken coops, a larger number of species was detected, which may indicate an association between insects and poultry. Lu. longipalpis was abundant in both seasons.

CONCLUSION:

The presence of chicken coops outside the houses and the lack of physical barriers may favor Leishmania spp. transmission in the locality. The results of this study can guide entomological surveillance and vector control actions in Tomé-Açu.

Keywords: Vector Ecology; Leishmania; Entomology; Epidemiologic Measurements; Environmental Health Surveillance; Seasonal Variation