The purpose of this study is to evaluate whether the addition of Proactive Case Detection to Community Case Management will provide an increase in early access to health care and a reduction in deaths among children aged 0-59 months. Integrated Community Case Management is the package of community-based services for children delivered by Community Health Workers (CHW), including diagnosis and treatment of malaria, pneumonia, diarrheal disease and malnutrition. In many i-CCM interventions, CHWs are stationed in their villages and available in a passive, reactive manner to provide care to patients who seek them out. This study seeks to determine whether the addition of proactive case detection by CHWs, in which the conduct daily door-to-door home visits to find and care for patients, improve early access to care and reduce child mortality.