The Unified Health System (Sistema Único de Saúde, or SUS) is Brazil's public health system, established in 1990. It aims to provide comprehensive, universal healthcare to all citizens, ensuring access to medical services regardless of income or social status. The system is funded by the government through taxes and is designed to promote health equity across the country. SUS encompasses a wide range of services, including preventive care, hospital treatment, and specialized services. It operates through a network of public health facilities, such as hospitals, clinics, and community health centers, working to improve the overall health of the population while addressing social determinants of health.