[Necessity of continuous surveillance in former endemic disease zones in the campaign against human African trypanosomiasis (observations made in Upper Volta)].
D002050:Burkina Faso; D003140:Communicable Disease Control; D006801:Humans; D014353:Trypanosomiasis, African / Q000517:prevention & control*
Necessité d'une surveillance continue des zones d'ancienne endémie dans la lutte contre la trypanosomiase humaine africaine (à propos d'observations faites en Haute-Volta.