The document discusses several key aspects of health systems, including:
1) It outlines three tiers of primary care and examines tensions between patient demand and bureaucratic systems.
2) It explores the six building blocks of health systems according to the WHO - service delivery, health workforce, information, medical products/vaccines, financing, and leadership/governance - and how strengthening these can improve health outcomes.
3) It presents three approaches to moving towards universal health coverage according to the World Health Report 2008: expanding health insurance, expanding public provision of personal health services, and expanding community-based health workers.