Epidemic transmission of intestinal schistosomiasis in the seasonal part of the Okavango Delta, Botswana
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Epidemic transmission of intestinal schistosomiasis in the seasonal part of the Okavango Delta, Botswana. / Appleton, C.C.; Ellery, W.N.; Byskov, Jens; Mogkweetsinyana, S.S.
In: Annals of Tropical Medicine and Parasitology, Vol. 102, No. 7, 2008, p. 611-623.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Epidemic transmission of intestinal schistosomiasis in the seasonal part of the Okavango Delta, Botswana
AU - Appleton, C.C.
AU - Ellery, W.N.
AU - Byskov, Jens
AU - Mogkweetsinyana, S.S.
PY - 2008
Y1 - 2008
N2 - 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.
AB - 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.
KW - Former LIFE faculty
KW - schistosomiasis
KW - intestinal
KW - transmission
KW - epidemisk
KW - Okavango Delta
KW - Botswana
KW - schistosomiasis
KW - intestinal
KW - transmission
KW - epidemic
KW - Okavango Delta
KW - Botswana
U2 - 10.1179/136485908X311867
DO - 10.1179/136485908X311867
M3 - Journal article
C2 - 18817602
VL - 102
SP - 611
EP - 623
JO - Pathogens and Global Health
JF - Pathogens and Global Health
SN - 2047-7724
IS - 7
ER -
ID: 9541788