[Lymphatic filariasis in Haiti: historical sequel or future public health problem in this geographic region?].

Wuchereria bancrofti persists in Haiti in localized foci, discontinuously distributed. The parasite, transmitted by Culex quinquefasciatus, develops in mesoendemic or hyperendemic fashion in urban and suburban areas, on the coastal plains sheltered from the prevailing winds, predominantly in the Nord department and around the gulf of La Gonave. Lymphatic filariasis is a major public health problem. Its impact is more evident in males on account of the genital repercussion of the disease. The acute lesions appear from early infancy and are related to microfilarial density. The chronic lesions begin with adolescence, and occur with high frequency in adults. Lymphatic filariasis has retreated in the countries where socioeconomic or sanitary conditions have improved: Puerto Rico, French West Indies, Cuba. In countries confronted by underdevelopment, overpopulation and uncontrolled urbanization, the disease is prevalent: Haiti, Dominican Republic, Trinidad. It is essential to carry out epidemiological investigations in order to identify the extend of the lymphatic filariasis problem in the Caribbean, particularly as population migration in both directions is becoming intensified: the native people looking for work in the industrialized countries, and tourists seeking the attractions of the tropics.