| schistosoma and geohelminth infections in mali, west africa. | we report on the prevalence of schistosomiasis and geohelminth infections in mali, central west africa, based on data from the national schistosomiasis control programme of mali (1982-1991) and from our recent surveys (1992-1993). combined national figures and regional data are presented from both surveys. schistosomiasis showed an overall prevalence of 30.1%, with lowest prevalence in sikasso region and highest prevalence in segou region. ascaris lumbricoïdes (0.12%) and trichuris trichiura (0. ... | 1995 | 8849296 |