Lymphatic filariasis is a public health problem in Mali. The existing data are not up to date and most of them are more than 15 years old. To address this issue in April 2000, the investigators started studies to update the epidemiology of lymphatic filariasis. As a result, in two rural areas (Banambani and Sirakoro) located at about 25 km North-East Bamako, the parasite prevalence using ICT cards in August 2000 were 16% (n=150) and 15.0% (n=113) respectively in Banambani and Sirakoro. There is no ongoing lymphatic filariasis control program in 2000 in Mali in terms of preventive chemotherapy treatment or vector control.