Epidemic transmission of intestinal schistosomiasis in the seasonal part of the Okavango Delta, Botswana.
Ann Trop Med Parasitol
; 102(7): 611-23, 2008 Oct.
Article
en En
| MEDLINE
| ID: mdl-18817602
A well documented epidemic of human intestinal schistosomiasis caused by Schistosoma mansoni occurred at Maun in the seasonal part of the Okavango Delta, Botswana, building from very few cases in the 1950s and early 1960s to a peak prevalence of >80% in the 1980s. A retrospective analysis was performed on all available records of the prevalence of S. mansoni in the Maun area and the corresponding flow records of the Thamalakane River. These revealed a statistically significant correlation between prevalence and flow, but only when a lag period was introduced. The correlation was greatest with a lag period of 5-6 years between the rise and fall of discharge and the rise and fall of transmission. Since the hydrological events in the delta follow a cyclical pattern, another epidemic around 2020 appears likely.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Schistosoma mansoni
/
Biomphalaria
/
Esquistosomiasis mansoni
/
Ríos
Tipo de estudio:
Etiology_studies
/
Risk_factors_studies
Límite:
Animals
/
Humans
País/Región como asunto:
Africa
Idioma:
En
Revista:
Ann Trop Med Parasitol
Año:
2008
Tipo del documento:
Article
País de afiliación:
Sudáfrica
Pais de publicación:
Reino Unido