Public health involves collective action to prevent disease and improve the health of a population. Local organizations identify community needs and provide trusted services. National governments regulate and finance health systems, while global actors offer funding, coordination and specialist knowledge. The results depend on how these groups divide power and responsibility.

Case study: Health care for Syrian refugees in Jordan, 2011–present

Jordan has received large numbers of Syrians displaced by the conflict that began in 2011. Most live in Jordanian towns and cities. Others are based in camps, including Zaatari, which opened in 2012, and Azraq, opened in 2014. The influx placed pressure on hospitals and primary-care centres, as well as medicines, vaccination programmes and maternal health services.

Actors, interests and power

The Jordanian government, particularly the Ministry of Health, holds sovereign authority over health policy, professional standards and access to public facilities. It has tried to protect refugees without allowing an already pressured national system to become financially unsustainable.

Local clinics and municipalities work alongside Jordanian community organizations and Syrian volunteers. They connect patients with services and share health information. Being close to the community gives them knowledge and trust, though they have limited budgets and little formal decision-making power.

Global actors supply resources that Jordan could not easily provide alone:

• The United Nations High Commissioner for Refugees (UNHCR) coordinates refugee protection, supports referrals and helps vulnerable refugees meet health costs.
• The World Health Organization (WHO) provides technical guidance, supports disease surveillance and coordinates with national authorities.
• UNICEF has supported child health, immunization, water and sanitation.
• International NGOs, including the International Medical Corps, have operated or supported clinical services, particularly in refugee camps.

Refugees are central stakeholders, yet they hold less institutional power than governments and donors. They want affordable treatment and reliable information, along with confidentiality and continuity of care.

Action and impact

Jordan initially gave Syrian refugees broad access to public health care. Fiscal pressure later led to changes in the fees charged to refugees living outside camps. These changes exposed the limits of a national response when predictable international support does not match the costs. Camp residents generally had greater access to humanitarian health services. Urban refugees, by contrast, could face fees, transport costs and uncertainty over eligibility.

National and international actors also worked together on vaccination and infectious-disease surveillance. During the COVID-19 vaccination programme in 2021, Jordan included refugees in its national rollout with support from UN agencies. National authority and global finance were combined rather than organized as competing systems.

The impact has been mixed. Cooperation prevented refugee and national health systems from becoming completely separate and delivered essential services, but access remained uneven. Global organizations have money and expertise, yet they rely on Jordanian authorization. Jordan retains sovereignty, although donor funding and regional instability constrain its policy choices. Legitimacy depends on fair treatment for refugees without neglecting host communities under similar pressure.

Possible courses of action

One option would be a multi-year funding arrangement through which donors support Jordanian public facilities serving refugees and host communities. This could improve continuity and reduce resentment. However, donor fatigue and competing emergencies make long-term commitments difficult.

A second option would give refugee representatives a formal role in local health-planning bodies. Services could then respond more closely to refugee needs, but representatives would need to be selected transparently. They must include women, people with disabilities and refugees living outside camps.

Links to other global political challenges

This case links to Borders because displacement moves health needs across state boundaries, making legal status important to access. It connects to Poverty because fees, insecure work and transport costs determine whether treatment is obtainable. It also relates to Security: conflict caused the displacement, and governments may view refugee movements through both humanitarian and security concerns.

Epidemics cross political boundaries when states are linked by people, goods and transport networks. Governments remain sovereign over domestic health policy, yet surveillance, information sharing and emergency response create strong interdependence. Global capacity works only when it connects with trusted action at national and local levels.

Case study: The Ebola outbreak in Liberia and West Africa, 2014–2016

The Ebola outbreak began in Guinea in late 2013, then spread into Liberia and Sierra Leone during 2014. People moved through border communities, commercial routes and cities, making a purely national response insufficient. Weakened by earlier civil conflict and limited resources, Liberia's health system struggled to isolate patients, trace contacts and protect health workers.

Actors, interests and power

The governments of Liberia, Guinea and Sierra Leone had the legal authority to impose emergency measures and organize their national health responses. Their aim was to stop transmission without losing political order or economic activity.

Local health workers, community leaders, families and burial teams directly affected whether patients were identified and safe practices were accepted. Cooperation mattered most where distrust of officials or foreign personnel had reduced compliance.

International actors included:

• The WHO, which declared the outbreak a Public Health Emergency of International Concern in August 2014 and coordinated technical guidance.
• Médecins Sans Frontières (MSF), which treated patients and publicly warned that the response was being overwhelmed.
• The United Nations Mission for Ebola Emergency Response, established in 2014 to coordinate a wider UN response.
• Foreign governments and agencies that supplied laboratories, treatment capacity, personnel, logistics and finance.

These actors brought substantial material resources and expert power. They couldn't, however, replace legitimate local relationships. International treatment centres achieved little if frightened communities concealed illness or refused official burial procedures.

Action and impact

Treatment centres and diagnostic laboratories expanded. The response also increased contact tracing, border surveillance, public information and safe burial teams. Cooperation helped clinical information and resources move between states, while international transport and logistics supported places where national capacity was weakest.

At first, the response was too slow. WHO and national institutions were criticized for underestimating the emergency. Some border restrictions disrupted trade and separated connected communities, but failed to eliminate informal movement. Liberia also used emergency powers, including the 2014 quarantine of the West Point area of Monrovia. Its coercive character intensified public anger and showed how epidemic control can clash with civil liberties and political legitimacy.

Transmission declined once international capacity increased and community engagement improved. Liberia was first declared free of Ebola transmission in May 2015, although later clusters occurred. WHO ended the international public-health emergency in March 2016. International cooperation was necessary, but it worked only with local trust, national administration and early action.

Possible courses of action

Rather than building systems after an outbreak begins, West African states could maintain permanent cross-border surveillance arrangements, shared laboratory protocols and rapid-response teams. Continuous funding would remain a challenge, as would differences in state capacity and concerns about sharing politically sensitive information.

Governments and international organizations could agree beforehand on rights-based emergency rules, including time limits, review procedures and support for people placed under quarantine. These safeguards may strengthen legitimacy, though applying them can be difficult when authorities face uncertainty and pressure to act quickly.

Links to other global political challenges

The case links directly to Borders, as border communities and regional mobility shaped both transmission and response. It connects to Security because the outbreak threatened state capacity and was treated as an international emergency. There is also a link to Poverty: underfunded health systems and insecure livelihoods made prevention, isolation and recovery more difficult.

Health shapes quality of life in many ways. It affects survival, physical and mental well-being, the ability to work or study, personal autonomy and participation in community life. Patterns of illness can also expose wider social conditions. Income, gender relations, employment, education, housing and access to public services all affect exposure to disease and whether people can obtain treatment.

Case study: HIV/AIDS in rural KwaZulu-Natal, South Africa, 2004–present

HIV has placed a major burden on rural communities in KwaZulu-Natal. Poverty does not itself transmit HIV, nor can infection be traced to a single socio-economic cause. Economic insecurity, circular labour migration and gender inequality can still increase vulnerability, while distance from clinics and stigma may interrupt treatment.

Actors, interests and power

South Africa's national government sets treatment policy and funds the public health system. The KwaZulu-Natal Department of Health and district clinics put that policy into practice. Although these institutions have considerable formal authority, staffing shortages, transport problems, medicine supply and limited administrative capacity constrain delivery in rural areas.

Nurses, community health workers and local organizations form the link between national policy and households. They provide testing, adherence support and health education, but heavy workloads can limit how many people they reach.

People living with HIV are stakeholders, not passive recipients. Civil-society advocacy has strengthened their influence over policy. One example is the Treatment Action Campaign, which pressured the state to expand access to effective treatment. International actors, including the United States President's Emergency Plan for AIDS Relief and the Global Fund to Fight AIDS, Tuberculosis and Malaria, have supplied finance and programme support. This gives them some influence over priorities, though state responsibility remains.

Health as an indicator of socio-economic conditions

South Africa began expanding national public-sector antiretroviral treatment in 2004, then adopted a universal test-and-treat policy in 2016. As treatment became increasingly decentralized to primary-care clinics, people outside major hospitals could access it more easily. Research in rural KwaZulu-Natal has linked the expansion of antiretroviral treatment to substantial improvements in adult life expectancy.

Access remains socially uneven. Someone may have a formal entitlement to free treatment yet still face a long journey, lost income or food insecurity. They may also fear that disclosure will result in discrimination. Women often have greater contact with testing through reproductive-health services, but they may lack bargaining power within relationships. For migrant workers, movement between rural homes and workplaces can disrupt regular appointments and continuity of medication.

HIV may deepen poverty as well. Illness can reduce earnings, create care responsibilities and affect children's education. Effective treatment can partly reverse this process because it allows people to stay healthy, work and care for dependants. Health is both a result of socio-economic conditions and a cause of improved or diminished quality of life.

Possible courses of action

Authorities could expand mobile clinics and community medicine collection, while integrating HIV, tuberculosis and primary-care services. These measures could reduce travel and stigma. However, they depend on reliable staffing, secure supply chains and the protection of confidential patient information.

Another option is to link treatment more closely with social support, such as food assistance, transport help and protection against workplace discrimination. This would address conditions that affect adherence, although it requires sustained public funding and coordination across health, welfare and labour institutions.

Links to other global political challenges

The case links to Poverty because poor health and material deprivation can reinforce each other. It connects to Equality through unequal access to services and gendered power relations. There is also a link to Identity: stigma associated with HIV, sexuality or migrant status can affect whether people seek testing and continue treatment.