Efeito da urbanização sobre a dominância de Lutzomyia longipalpis em Campo Grande - MS

Abstract

The lack of urban planning is one of the main factors associated with the establishment and adaptation of vectors in urban centers, contributing to the spread of diseases such as visceral leishmaniasis, an endemic infectious-parasitic disease in Brazil, with Lutzomyia longipalpis being one of its main vectors. In Campo Grande, an endemic area for visceral leishmaniasis (VL), there are gaps in the study of the effects of urbanization on the dominance of Lu. longipalpis. Therefore, my objective is to identify how the dominance of Lu. longipalpis responds to changes in the urban landscape of Campo Grande - MS, starting from 1999. To achieve this, we used Falcon-type light traps to capture and identify phlebotomine sand flies at 16 sampling points, analyzing only the points where more than four sand flies were collected in at least four of the sampled years. We used differential equations to compare different parameters and observed a positive relationship between the rate of urbanization and the dominance of Lu. longipalpis in the neighborhoods analyzed, a factor that may be related to inadequate land use, poor sanitation, and other elements that may be present in the urbanization process.