[Epidemiological survey and sanitary problems in a village in East Central Madagascar]

An evaluation of health problems is done in a village in Eastern Madagascar, where takes place a development programme. 217 inhabitants go through physical examination and lab tests are performed (Blood smear - Thick drop. Emmel test. Stools examination for parasites and enteroviruses). The epidemiologic investigation reveals the prevalences of Malaria (39,4 p. 100) intestinal schistosomiasis (59,9 p. 100) Ascaridiasis (61,3 p. 100) Hookworm (29,9 p. 100) Trichuriasis (19,8 p. 100) and sickle cells anemia (4,80 p. 100). The signs and symptoms are analysed, particularly spleen enlargement which is shown to be due to schistosomiasis. The local transmition pattern of schistosomiasis is investigated and, according to the malacological findings, is thought to be intermittent. The determination of the local hookworm is started. It should be Necator americanus. The sanitary programme to be set is considered regarding the local contexte.