Integrated Management of Childhood Illness (IMCI) is a strategy that improves the health of children under five. It is better than single-condition approaches because children often have multiple conditions. IMCI takes a holistic approach to the child's health. The strategy includes improving health worker skills through training, strengthening health systems, and improving family and community health practices related to child health. This approach helps provide high quality and accessible services to improve child survival, growth, and development.