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Epidemiological investigation of bancroftian filariasis in the coastal zone of liberia


, : Epidemiological investigation of bancroftian filariasis in the coastal zone of liberia. Tropenmedizin und Parasitologie 28(1): 71-76

A survey in 5 study areas along the Liberian coast was conducted to gain information on the prevalence and importance of bancroftian filariasis. The examination of 2675 persons revealed prevalence rates between 2-37%. The median microfilarial densities (MfD50) ranged from 5-24 microfilariae in 20 mm3 capillary blood taken between 20.30 h and midnight. Catalytic curves fitted to age-specific infection rates were used to estimate incidence (1%-3%) and recovery rates. It was extrapolated from the survey results that in a population of 71,000 there are 16,000-20,000 infected with Wuchereria bancrofti. An estimated 2500-4000 men suffering from hydroceles and 3700-4000 elephantiasis patients demonstrate that bancroftian filariasis has to be regarded a health problem in rural coastal Liberia.

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Related references

Brinkmann, U.K., 1977: Epidemiological investigations of Bancroftian filariasis in the coastal zone Liberia. A survey in 5 study areas along the Liberian coast was conducted to gain information on the prevalence and importance of bancroftian filariasis. The examination of 2675 persons revealed prevalence rates between 2% and 37%. The median microfilarial...

Brinkmann, U.K., 1977: Epidemiological investigations of bancroftian filariasis in the coastal zone of Liberia. A survey in 5 study areas along the Liberian coast was conducted to gain information on the prevalence and importance of bancroftian filariasis. The examination of 2,675 persons revealed prevalence rates of between 2 and 37%. The median microfilar...

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Zielke, E.; Chlebowsky, H.O., 1979: Studies on bancroftian filariasis in Liberia, West Africa. I. Distribution and prevalence in the Nord-Western savanna area. Night blood was examined from 1968 people of the Gissi tribe in Upper Lofa, Liberia. 279 (14.2%) carried microfilariae of Wuchereria bancrofti. 19.0% of the men were infected and 10.4% of the women. There were 2 cases of elephantiasis of the leg a...

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