Epidemiology (Cambridge, Mass.) · 2002
The urban spread of visceral leishmaniasis: clues from spatial analysis.
СтатьяПоддержка исследования: вне правительства СШАПоддержка службы здравоохранения СШАНазвание и аннотация: Перевод пока не подготовлен
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Werneck Guilherme L, Costa Carlos H N, Walker Alexander M, David John R, Wand Matthew, Maguire James H
Аннотация
BACKGROUND: The pattern of spread of visceral leishmaniasis in Brazilian cities is poorly understood.
METHODS: We used geographic information systems and spatial statistics to evaluate the distribution of 1061 cases of visceral leishmaniasis in Teresina, Brazil, in 1993 through 1996.
RESULTS: A locally weighted (LOESS) regression model, which was fit as a smoothed function of spatial coordinates, demonstrated large-scale variation, with high incidence rates in peripheral neighborhoods that bordered forest land and pastures. Moran's I indicated small-scale variation and clustering up to 300 m, roughly the flight range of the sand fly vector.
CONCLUSIONS: Spatial analytical techniques can identify high-risk areas for targeting control interventions.
METHODS: We used geographic information systems and spatial statistics to evaluate the distribution of 1061 cases of visceral leishmaniasis in Teresina, Brazil, in 1993 through 1996.
RESULTS: A locally weighted (LOESS) regression model, which was fit as a smoothed function of spatial coordinates, demonstrated large-scale variation, with high incidence rates in peripheral neighborhoods that bordered forest land and pastures. Moran's I indicated small-scale variation and clustering up to 300 m, roughly the flight range of the sand fly vector.
CONCLUSIONS: Spatial analytical techniques can identify high-risk areas for targeting control interventions.