vaovao1

Health

Since the years 1950, the area of Antananarivo is the least known as regards bilharziose. In 1994, before the installation of the Project of Installation of the Plain of Antananarivo, of the epidemiologic investigations were realized in educational circle to evaluate the epidemiologic situation of the intestinal bilharziose. The results of the examinations of saddles by the method of Kato-Katz showed that 4,3% of the 6.169 drawn to the fate and examined pupils were carrying eggs of Schistosoma mansoni. The four most infested villages are located along the Mamba river. The search for Schistosoma haematobium by the method of filtrationa be negative. In 1999, after the realization of the Project of Installation of the Plain of Antananarivo, a study was undertaken in the same public primary schools (EPP) in order to study the evolution of the endemicity billiarzienne. 1 'study related to 5.222 pupils from 5 to 15 years according to a methodology identical to the investigation of 1994. The sex-ratio boy/girl is equal to 1, 4/1. The total prevalence of the intestinal bilharziose is 1, 8%. The highest prevalence is that of the EPP of Antanandrano (23,3%) which is close to the Mamba river, in the North of the capital and that of the EPP of Ambohitsoa (16, 3%) located close to the Lake Mahazoarivo. Between 1995 and 1999, the prevalence significantly decreased (p<10 [- 1]) Several factors can explain that reduction: medical education, the absence of the conditions favorable to the development of the molluscs host-intermediaries and urbanization. In addition, a strong prevalence of the ascariasis (79%) and trichocéphalose (67%) were observed. 4.3% of the pupils are carrying eggs of Taenia sp. The bilharziose is on a level hypoendemic in the plain of Antananarivo. The strategy of fight against this disease must be directed in priority on a programmed' Information-Education-Communication targeting the school population.

source: www.cat.inist.fr

Madagascar sur BIG-annuaire