This document discusses infant mortality rates around the world. It defines infant mortality as deaths of children under age 1. The world infant mortality rate in 2008 was 49 per 1000 live births, while rates were lower in more developed countries (6 per 1000) and higher in less developed and least developed countries (54 and 85 per 1000, respectively). Infant mortality is an important indicator of overall health conditions and levels of development within a country. Many infant deaths are preventable through improved medical care and interventions.