In the past, Costa Rica was characterized by a duplicative and fragmented public primary healthcare system. In 1994, the country initiated a sweeping reform of the health system, including primary health care. Bureaucratic reorganization of the Ministry of Health (MOH) and the Social Security Agency (CCSS) led to the integration of all healthcare delivery under the CCSS, from public health activities to tertiary care. Comprehensive multidisciplinary primary healthcare teams (EBAIS)—comprised of a doctor, nurse assistant, community health worker, and data specialist—were created to care for approximately 5,000 patients each. A system of geographic empanelment was implemented to assign every Costa Rican to one of the newly-formed EBAIS teams. Finally, quality assurance mechanisms were initiated and promoted data collection and feedback central as a central function of the EBAIS teams. The first EBAIS team was established in 1995 and by 2002, there were 818 active teams throughout the country. Today, these teams provide comprehensive, continuous, coordinated, and first contact access to nearly 95% of Costa Ricans. Over the first 9 years of the reform, areas with EBAIS teams saw a 9% decrease of infant mortality and a 2% decrease in adult mortality.
