[Surveillance system for Buruli ulcer in Benin: results after four years].

Infection by Mycobacterium ulcerans, commonly known as Buruli ulcer (BU), is an emerging infectious disease in some African countries, including Benin. A national BU control program has been organised since 1997. One of its main objectives is to organise a system of BU surveillance, based on the BU02 data collection form developed by the World Health Organization. This surveillance system has allowed the National BU program to collect suitable data for more than 3,793 patients. This article assesses data collection in Benin and demonstrates its suitability and high quality.