Pneumonia is the largest killer of children under 5, taking close to 2 million young lives each year. The death rate for pneumonia is 10 times higher in developing countries for reasons including poor access to care, delays in diagnosis, treatment and supportive care, misdiagnosis, and malnutrition. Getting sick children into appropriate care sooner would substantially decrease pneumonia deaths among children worldwide. The CGHD’s portfolio of projects addressing pneumonia includes studying the effectiveness of treating pneumonia at the community level with community health workers, exploring which factors contribute to treatment failure in children, looking at the role of zinc deficiency in children’s susceptibility to the disease and the effectiveness of zinc in pneumonia treatment, and the integrated management of malaria and pneumonia.