In a guest post on Humanosphere, Katie Leach-Kemon, a policy translation specialist from the University of Washington’s Institute for Health Metrics and Evaluation, writes, “The significant progress made against child mortality around the world over the last two decades is frequently cited as one of the biggest success stories of international development. Much more remains to be done, but it’s worth looking at what we know — and don’t know — about this propitious decline in child deaths.” She examines data from the Global Burden of Disease Study 2010 (GBD 2010), and she concludes, “In each update, scientists obtain more data and apply more advanced methods. When new child mortality estimates are released as part of the GBD Study 2013, it will be enlightening to see what the new data and improved methods reveal” (3/31).