translate English to French: Significant progress in access to treatment for children is being made, however, and WHO estimates that, of the children in need of treatment, the proportion who have gained access to that treatment has increased by about 50 per cent from 2005 to 2006.
Cela dit, on observe une amélioration notable concernant l'accès des enfants au traitement, et l'OMS estime que la proportion d'enfants ayant accès au traitement dont ils ont besoin a augmenté d'environ 50 % entre 2005 et 2006.