Thinking shift on health systems: from blueprint health programmes towards resilience of health systems Comment on "Constraints to applying systems thinking concepts in health systems: A regional perspective from surveying stakeholders in Eastern Mediterranean countries".

International health is still highly dominated by equilibrium approaches. The emergence of systems thinking in international health provides a great avenue to develop innovative health interventions adapted to changing contexts. The public health community, nevertheless, has the responsibility to translate concepts related to systems thinking and complexity into concrete research methods and interventions. One possibility is to consider the properties of systems such as resilience and adaptability as entry points to better understand how health systems react to shocks.