translate English to French: Rural inhabitants in East Asia, South Asia and sub-Saharan Africa were the most underserved, with at most 28 per cent having access.  The urban populations of those regions were also relatively underserved, with just 53 per cent of urban dwellers in sub-Saharan Africa having access to improved sanitation, and 63 per cent and 69 per cent, respectively, of those in South Asia and East Asia.
Les habitants des zones rurales d'Asie orientale, d'Asie du Sud et d'Afrique subsaharienne étaient les moins bien desservis (au plus 28 %) de même que les populations urbaines de ces régions (53 % en Afrique subsaharienne comparés à 63 % en Asie du Sud et 69 % en Asie orientale).