A leishmaniose tegumentar americana em Campinas : contribuições da analise espacial e do sensoriamento remoto orbital / American tegumentary leishmaniosis in Campinas : contributions of space analysis and the remote sensing

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

The aim of this work was to study the epidemiological profile and geographical distribution of American tegumentary leishmaniasis (ATL) cases occurring in Campinas between 1992 and 2003. Information on notified ATL cases in Campinas and the respective probable infection locations (PIL) were obtained from the Notifiable Diseases Information System (NDIS), epidemiological investigation forms available from Campinas Municipal Health Secretary, and the SUCEN-Campinas region Superintendent of Endemic Disease Control. Socio-demographic and epidemiological variables were studied. These data were georeferenced by recording PIL coordinates using GPS (Global Position System). Datum: Córrego Alegre Projection: UTM. Areas with high case concentrations (clusters) in the municipal area were identified using a kernel density estimator. Landsat 5 TM 219/76 sensor satellite images of these areas were processed to identify use, occupation and soil patterns related to the disease?s epidemiological profile. This image processing consisted of: recording, segmenting, and classifying into theme classes (types of soil use and occupation). Cross tabulation was performed between these theme classes to analyze time and space changes in the study areas. The software used for this was Spring 4.01 Beta. The ATL in Campinas is concentrated in two areas of the city (East and Southwest) which differ from each other in aspects concerning occupation and use of the soil and socio-economic conditions. In the Eastern area, deforestation was not verified in the years that had preceded the outbreak. In the Southwestern area, this illness is endemic presenting epidemic cycles every 9-10 years. Remote Sensing can contribute to understanding the dynamics of this and other vector transmitted diseases

ASSUNTO(S)

zoonoses zoonoses epidemiologic surveillance vigilancia epidemiologica

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