Est (2) Département du Nord (2) Cameroun (2) Economic conditions (2) Development (2) Customizing (2) Cysts (2) Causes (2) Diseases (2) Urban geography (2) Plumbing fixtures (2) Non-governmental organizations (2) Male actors (2) Entamoeba (2) Walking (2) Truck farming (2) Streptococcus (2) Social status (2) Sewage (2) Risk (2) Quality of life (2) Protozoa (2) Plumbing--Equipment and supplies (2) North (The word) (2) Longitude (2) Latitude (2) Land tenure (2) Integrated water development (2) Human ecology (2) Households (2)