This document includes highlights of the work during 2009 of WHO's Department of Child and Adolescent Health and Development (CAH). It provides an overview of the key achievements in the areas of newborn, child and adolescent health and development at headquarters, regional and country levels. It also includes a statistical annex covering key indicators for child health in a selection of countries with high under-five mortality rates, as well as adolescent health profiles for five countries representing different regions. In addition, it includes an annex with information on progress being made in CAH's "countries for intensified support".