Utilização de ferramentas de análise espacial na vigilância epidemiológica de leishmaniose visceral americana - Araçatuba, São Paulo, Brasil, 1998-1999

Abstract

The control of American visceral leishmaniasis (AVL) is based on combating the vector and eliminating the domestic reservoir of the focus area - defined as 200 meters around human or canine cases. This paper discusses the use of spatial analysis techniques in the epidemiological surveillance of AVL in Araçatuba, São Paulo State, in order to propose a model for territorial epidemiological surveillance, reformulating current control strategies. The results showed that AVL transmission was not homogeneous; human cases were more frequent in areas with higher canine prevalence rates. Vector dispersion appeared to be restricted to a few houses, although it was not possible to model the vector density. In order to study the vector distribution and correlated covariates, a field study based on house sampling is being conducted. The results will aid the development of new spatial analysis tools and possibly redefine protocols and routines for the control of this endemic disease in urban areas.

Temporal, spatial and spatiotemporal analysis of the occurrence of visceral leishmaniasis in humans in the City of Birigui, State of São Paulo, from 1999 to 2012

“…These results demonstrate that spatial analysis tools have important value for epidemiological analyses and the improvement of surveillance, disease control and public policy development 9 . A joint action of the measures recommended by the Health Ministry and the utilization of geo-referencing enables greater effi ciency and effectiveness in controlling disease and might be a tool for reducing the incidence of VLH in Birigui 10 and other municipalities with similar epidemiological frameworks.…”

“…longipalpis was fi rst identifi ed in 1997 in the western region of the State of São Paulo in the municipality of Araçatuba 8 . However, the fi rst autochthonous cases of VLH were recorded in 1999 in the municipalities of Araçatuba and Birigui 9 . Thereafter, VLH spread to other municipalities, particularly in the western region of the state; between 1999 and 2011, 73 municipalities of São Paulo had human cases 10 and 125 municipalities documented the presence of the vector 11 .…”

Leishmaniose visceral: estudo de flebotomíneos e infecção canina em Montes Claros, Minas Gerais

“…Camargo-Neves et al 5 consideram a necessidade de analisar a superfície da densidade vetorial e correlacioná-la com os aspectos ambientais do peridomicílio, tais como presença de vegetação, raízes, troncos de árvores e matéria orgânica no solo, representando possíveis abrigos e criadouro para o vetor 5 .…”

Prevalência e distribuição espacial da leishmaniose visceral em cães do município de Juatuba, Minas Gerais, Brasil

“…A distribuição de casos de LVC ocorreu de forma heterogênea em Juatuba, o que também foi verifi cado por CAMARGO-NEVES et al (2001), em Araçatuba, São Paulo, e LOPES et al (2010, em Belo Horizonte, Minas Gerais. Trabalhos que avaliam a distribuição espacial da LV são importantes para o direcionamento das ações de prevenção e controle adequadas.…”