ABSTRACT
Using the Kato katzi technique; 600 people living in Nakiwogo fishing village at Lake Victoria; Uganda; were examined for schistosoma mansoni infection. The total population of this village was estimated between 1;00 and 1;500 mainly consisting of migrants from Western Uganda. Of the 600 individuals in the study group; 328 people (54.7) were found to be infected with S. mansoni. The geometric mean egg count was 422 eggs per gramme of stool. a survey of the snail intermediate hosts for S. mansoni and S. haematobium at Nakiwogo was carried out. The collected snails were tested for cercariae shedding. A significant decrease in the number of Biomphalaria choanomphala and Biomphalaria pfeifferi (52) which both still shed cercariae and Bulinus (52.5) could be observed. There was a lower none-significant decrease of 13.3of the Bulinus globosus population. With a combined approach including community participation in control measures in the form of health education; sanitation; environmental management and chemotherapy; the prevalence of S. mansoni infection was reduced from 54.7to 14.6 in the period of one year
