[Identification of high risks regions of schistosomiasis in Côte d'lvoire]. / Identification des régions à haut risque de schistosomoses en Côte d'lvoire.

Regional and national epidemiological data being not available for coherent and efficient control strategies, the identification of high risk zones of schistosomiasis was set up in 5 regions of Côte d'lvoire in April 1999. The inquiry was conducted by questionnaire in 1291 primary schools including 119624 pupils. After less than 2 months, the results revealed blood in urines and in stools in respectively 22035 (18.6%) and 27555 (23.3%) pupils. Out of 1089 (99.8%) schools at risk of schistosomae, 358 (32.9%) are high risk schools. They are to be found especially in the Agnéby (30.8%) and the Marahoué (19.9%) regions identified as high risk areas where actions of control are then important to implement. They are followed by the Lakes regions (15%), the Middle-Comoé (12.6%) and Southern-Comoé (8.9%). These results should help to develop the schistosomiasis control in Côte d'lvoire.

[Land-use and urinary schistosomiasis in Daloa (Côte d'Ivoire)]. / Gestion de l'espace et schistosomose urinaire a Daloa (Côte d'Ivoire).

The relation between agricultural land development of inland-valleys and health population has been studied in a town of the Ivorian forest area using urinary schistosomiasis as an indicator. Snails were collected during 4 months in rice fields and water holes used for market gardening of two urban inland-valleys (Batagnihi and Gakognihi). Prevalence of schistosomiasis was evaluated in two districts, Kennedy II and Fadiga, located close to the investigated inland-valleys. Schistosomiasis risk was higher in the Batagnihi where rice cultivation was more developed and prevalence of urinary schistosomiasis was higher in the Kennedy II district which is close to this inland-valley particularly among the Northern migrant people. The Kennedy II population has much more contacts with the inland-valley because of rice cultivation and social status. The higher socio-economic level of the Fadiga population limiting its contacts with the inland-valley can explain this result.