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Geographical information system (GIS) in investigation of an outbreak.
Artículo en Inglés | IMSEAR | ID: sea-111857
ABSTRACT
An outbreak of fever in a village in southern India was reported on 1st September, 2001. The first reported case presented with epistaxis and a platelet count of 27000h(1)/mm3. Clinical, laboratory and entomological evidence supported a diagnosis of dengue fever. One third of the village was affected and 3.7 % of the population presented with haemorrhagic symptoms; none were fatal. Five acute cases tested for dengue specific IgM showed that two were positive. The larvae of Aedes aegypti were discovered from domestic water collections in the village. Spatial analysis done with the help of Geographical Information Systems software (GIS) demonstrated a centrifugal spread of cases from the most affected street until it involved the entire village. Spatial analysis revealed that cases occurred in clusters and that these could not have occurred by chance. This was our first experience in producing a geo-referenced map of a village area and in spatial analysis. GIS is a novel and simple tool for outbreak investigations and the spatial analyst adds additional information to the data collected. Control of adult mosquitoes and larvae prevented the outbreak from spreading to an adjacent village.
Asunto(s)
Texto completo: Disponible Índice: IMSEAR (Asia Sudoriental) Asunto principal: Anciano / Femenino / Humanos / Masculino / Recién Nacido / Niño / Preescolar / Control de Mosquitos / Brotes de Enfermedades / Adolescente País/Región como asunto: Asia Idioma: Inglés Año: 2005 Tipo del documento: Artículo

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Texto completo: Disponible Índice: IMSEAR (Asia Sudoriental) Asunto principal: Anciano / Femenino / Humanos / Masculino / Recién Nacido / Niño / Preescolar / Control de Mosquitos / Brotes de Enfermedades / Adolescente País/Región como asunto: Asia Idioma: Inglés Año: 2005 Tipo del documento: Artículo