13

Rufisque, faced with a sanitation problem, provided a framework for analyzing interactions between insalubrity and health through a focus on urban morbidity, approached using epidemiological data collected from households and healthcare centres. The very high diarrhoeic morbidity demonstrates spatio-temporal variation. In addition, the most frequently diagnosed diseases appear to be linked to the lack of hygiene. Thus, these tendencies show that Rufisque suffers from its lack of sanitation. However, citizen mobilization in favour of improved environmental quality is altering the patterns of diarrhoeic risk.