| the effectiveness of combined control measures on the prevalence of guinea worm disease in anambra state, nigeria. | the prevalence of guinea worm dracunculus medinensis was determined in communities in anambra state, eastern nigeria during the 1984-1985 guinea worm season. thereafter combined intervention measures which included health education and community participation in pond treatment were introduced in one of the two communities. there was a decrease in disease prevalence from 88.7% to 33% in group a (372 households) and from 88% to 53% in group b (368 households), two years after control measures were ... | 1991 | 1834731 |