Community-acquired pneumonia is a common and potentially serious infection that affects children worldwide. The annual incidence of pneumonia in children younger than five years of age is 34 to 40 cases per 1000 in Europe and North America, higher than at any other time of life [1]. In developing countries, pneumonia is not only more common than it is in the developed world (5 to 10% of all children < 5 years old), but also is more severe and is the largest cause of death in children [1, 2]. About 20% of deaths in children younger than five years of age are attributable to pneumonia (1.9 million deaths per year) [3]. More than 90% of these deaths are in resource-poor countries.