Spatial distribution of schistosomiasis foci on Itamaracá Island, Pernambuco, Brazil
Mem. Inst. Oswaldo Cruz
;
99(5,supl.1): 79-83, Aug. 2004. ilus, tab
Artículo
en Inglés
| LILACS
| ID: lil-384484
ABSTRACT
Acute cases of schistosomiasis have been found on the coastal area of Pernambuco, Brazil, due to environmental disturbances and disorderly occupation of the urban areas. This study identifies and spatially marks the main foci of the snail host species, Biomphalaria glabrata on Itamaracá Island. The chaotic occupation of the beach resorts has favoured the emergence of transmission foci, thus exposing residents and tourists to the risk of infection. A database covering five years of epidemiological investigation on snails infected by Schistosoma mansoni in the island was produced with information from the geographic positioning of the foci, number of snails collected, number of snails tested positive, and their infection rate. The spatial position of the foci were recorded through the Global Positioning System (GPS), and the geographical coordinates were imported by AutoCad. The software packages ArcView and Spring were used for data processing and spatial analysis. AutoCad 2000 was used to plot the pairs of coordinates obtained from GPS. Between 1998 and 2002 5009 snails, of which 12.2 percent were positive for S. mansoni, were collected in Forte Beach. A total of 27 foci and areas of environmental risk were identified and spatially analyzed allowing the identification of the areas exposed to varying degrees of risk.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Schistosoma mansoni
/
Biomphalaria
/
Esquistosomiasis mansoni
Tipo de estudio:
Estudio de etiología
/
Estudio pronóstico
Límite:
Animales
/
Humanos
País/Región como asunto:
America del Sur
/
Brasil
Idioma:
Inglés
Revista:
Mem. Inst. Oswaldo Cruz
Asunto de la revista:
Medicina Tropical
/
Parasitología
Año:
2004
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Fiocruz/BR
/
UFPE/BR
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