WHO Global Health Report 2025: Disease Burden, Health Systems & the Path to Universal Coverage

The State of Global Health in 2025: Progress and Persistent Gaps

The WHO Global Health Report 2025 arrives at a pivotal moment for international health. Five years after COVID-19 disrupted health systems worldwide, and with the 2030 Sustainable Development Goals deadline approaching, the report provides a comprehensive assessment of where global health stands—and the distance still to travel. The findings paint a picture of significant but uneven progress, with breakthroughs in some areas overshadowed by deepening challenges in others.

Global life expectancy has recovered to pre-pandemic levels in most regions, reaching 73.3 years globally as of the latest WHO estimates. Child mortality continues its long-term decline, with under-five deaths falling below 5 million annually for the first time—a milestone that reflects decades of investment in vaccination, nutrition, and maternal health programs. Maternal mortality, while still unacceptably high in many countries, has decreased by approximately 34% since 2000.

Yet these aggregate improvements mask stark inequities. A child born in a high-income country can expect to live 18 years longer than one born in a low-income country. Health spending per capita ranges from over $5,000 in wealthy nations to under $50 in the poorest countries. The COVID-19 pandemic exposed and in many cases worsened these disparities, disrupting routine health services, diverting resources, and setting back progress on tuberculosis, malaria, HIV, and childhood vaccination. The report connects these health system challenges to broader socioeconomic dynamics also explored in analyses of global institutional performance.

Universal Health Coverage: The 4.5 Billion Person Gap in Global Health

Universal health coverage (UHC) remains the centerpiece of global health strategy, and the WHO Global Health Report 2025 delivers a sobering assessment of progress. Approximately 4.5 billion people—more than half the world’s population—still lack full coverage of essential health services. This represents a marginal improvement from pre-pandemic levels but falls far short of the SDG target of universal coverage by 2030.

The UHC service coverage index, which tracks access to essential services across reproductive, maternal, newborn, and child health; infectious diseases; non-communicable diseases; and service capacity and access, has plateaued at approximately 58 out of 100 globally. Regional variation is enormous: the Western Pacific and European regions score above 75, while the African region averages below 45.

Financial protection—the other dimension of UHC—shows even more concerning trends. Over 2 billion people face catastrophic or impoverishing health expenditures, meaning they spend more than 10% of household income on health care or are pushed below the poverty line by medical costs. Out-of-pocket spending remains the primary financing mechanism in many low-income countries, creating a system where accessing health care can itself be a cause of poverty. Strengthening health financing is essential for achieving UHC, and the WHO report calls for domestic health spending to reach at least 5% of GDP in all countries.

Non-Communicable Diseases: 74% of Global Deaths in the Global Health Report 2025

The dominance of non-communicable diseases (NCDs) in global mortality represents one of the most significant epidemiological shifts of the 21st century. The WHO Global Health Report 2025 confirms that NCDs account for 74% of all global deaths—approximately 41 million people annually. The four major NCD categories are cardiovascular diseases (17.9 million deaths), cancers (10 million), chronic respiratory diseases (4.1 million), and diabetes (2 million).

What makes the NCD burden particularly challenging is its growing impact on low- and middle-income countries. While NCDs were historically associated with wealthy nations, over 77% of NCD deaths now occur in LMICs—countries that often lack the health infrastructure, screening programs, and treatment capacity to manage these conditions effectively. The double burden of infectious and non-communicable diseases places enormous strain on already resource-constrained health systems.

The WHO report emphasizes that most NCDs share common, modifiable risk factors: tobacco use, unhealthy diets, physical inactivity, and harmful alcohol consumption. Tobacco alone kills more than 8 million people annually, including 1.3 million non-smokers exposed to secondhand smoke. The report calls for accelerated implementation of proven interventions—tobacco taxation, sugar-sweetened beverage regulations, and physical activity programs—that remain woefully under-implemented in most countries. The intersection of health policy and environmental and social governance frameworks is increasingly relevant for addressing these systemic health challenges.

Pandemic Preparedness in the Post-COVID Era

The WHO Global Health Report 2025 dedicates substantial attention to pandemic preparedness—unsurprisingly, given the profound impact of COVID-19 on global health systems and the ongoing negotiations toward a pandemic treaty. The report’s assessment is blunt: despite the lessons of COVID-19, the world remains dangerously unprepared for the next pandemic.

Several structural weaknesses persist. Disease surveillance systems in many countries remain fragmented and under-resourced, limiting the ability to detect novel pathogens early. The International Health Regulations (IHR), which provide the legal framework for global health security, are only fully implemented by a minority of WHO member states. Genomic sequencing capacity—critical for tracking pathogen evolution—remains concentrated in high-income countries, with many LMICs lacking even basic sequencing capability.

On the positive side, the report highlights significant advances in vaccine platform technology, mRNA capabilities, and the establishment of regional manufacturing hubs—including the WHO mRNA Technology Transfer Hub in South Africa. These investments aim to reduce the extreme inequity in vaccine access that characterized the COVID-19 response, where high-income countries received doses months before the poorest nations. The pandemic treaty negotiations, expected to conclude in 2025, represent the most significant opportunity to strengthen global health governance in a generation.

The Health Workforce Crisis: 10 Million Workers Short

The global health workforce shortage represents what WHO calls a “crisis within a crisis.” The Global Health Report 2025 projects a shortfall of approximately 10 million health workers by 2030, concentrated overwhelmingly in low- and middle-income countries. This shortage threatens to undermine every other health goal—from UHC to pandemic preparedness to NCD management.

The workforce challenge is multidimensional. In absolute numbers, sub-Saharan Africa has approximately 1.55 health workers per 1,000 population, compared to over 12 per 1,000 in Europe. Beyond numbers, the distribution within countries is often severely skewed: health workers concentrate in urban areas, leaving rural populations with minimal access to trained providers. Migration of health workers from low-income to high-income countries—the “brain drain”—exacerbates these disparities, with receiving countries benefiting from training investments made by countries that can least afford the loss.

The WHO report recommends a multi-pronged approach: increased domestic investment in health worker training, improved working conditions and compensation (particularly in LMICs), expansion of community health worker programs, and responsible international recruitment practices that don’t deplete source-country health systems. The role of AI in healthcare is increasingly relevant to extending the reach of limited health workforces through diagnostic support, triage assistance, and treatment protocol guidance.

Digital Health and AI: Transforming Global Health Report 2025 Priorities

The WHO Global Health Report 2025 positions digital health as one of the most transformative forces in contemporary health care, while issuing important cautions about equity and governance. The acceleration of digital health technologies during and after COVID-19 has been remarkable: telemedicine utilization grew by over 40x during the pandemic and has stabilized at significantly higher levels than pre-2020 baselines in most countries.

AI-powered diagnostics represent a particular area of promise. AI systems now match or exceed human specialists in detecting certain cancers from medical imaging, identifying diabetic retinopathy, and predicting cardiovascular risk. In settings with few specialist physicians—a reality in much of the developing world—AI diagnostics could dramatically improve early detection and treatment outcomes for diseases that currently go undiagnosed until advanced stages.

However, the report warns that digital health technologies risk widening rather than narrowing health inequities if access to technology, connectivity, and digital literacy remains unequal. Countries where 70% of the population lacks reliable internet access cannot benefit from telemedicine platforms designed for broadband environments. AI systems trained primarily on data from high-income country populations may perform poorly for patients in different demographic, genetic, or epidemiological contexts. The WHO recommends that digital health strategies be explicitly designed for equity, with minimum standards for accessibility, data representation, and offline functionality in low-resource settings.

Climate Change: The Defining Health Threat of the Global Health Report 2025

WHO identifies climate change as “the single greatest health threat facing humanity”—a designation that reflects both the scale and the breadth of climate’s impact on human health. The Global Health Report 2025 documents multiple pathways through which rising temperatures, extreme weather, and ecological disruption are already affecting health outcomes worldwide.

Heat-related mortality has increased significantly, with an estimated 489,000 heat-related deaths annually—a figure expected to rise substantially as global temperatures climb. Extreme heat disproportionately affects elderly populations, outdoor workers, and communities in urban heat islands without access to cooling infrastructure.

Vector-borne diseases are expanding their geographic range as warming temperatures create suitable habitat for mosquitoes, ticks, and other disease vectors in previously unaffected areas. Dengue fever, in particular, has seen explosive growth: the number of reported cases has increased eightfold over the past two decades, with outbreaks now occurring in European countries that had been dengue-free. Malaria transmission zones are shifting to higher altitudes and latitudes.

Food security and nutrition face mounting pressure from climate-related crop failures, shifting growing seasons, and water stress. The WHO report estimates that climate change could push an additional 250 million people into hunger by 2050, with direct consequences for childhood nutrition, maternal health, and disease vulnerability. These projections connect to the broader analysis of green economy transitions and their health co-benefits. Research from the WHO Climate Change and Health programme provides detailed regional projections of climate-health impacts.

Antimicrobial Resistance and Emerging Infectious Diseases

The WHO Global Health Report 2025 elevates antimicrobial resistance (AMR) as one of the most critical threats to global health—a slow-moving pandemic that receives far less attention than acute outbreaks but could ultimately prove more devastating. AMR-associated deaths already exceed 1.27 million annually, with projections suggesting this could rise to 10 million by 2050 if current trends continue—surpassing cancer as a cause of death.

The drivers of AMR are well understood but inadequately addressed: overuse and misuse of antibiotics in human medicine, widespread antibiotic use in animal agriculture (which accounts for over 70% of global antibiotic consumption in some countries), inadequate sanitation and infection prevention that drives transmission of resistant organisms, and insufficient investment in new antimicrobial drug development.

The pipeline for new antibiotics is alarmingly thin. The WHO reports that only 27 new antibiotics targeting priority pathogens are currently in clinical development—far too few to replace the drugs losing effectiveness to resistance. The economics of antibiotic development are fundamentally broken: new antibiotics are used sparingly (to preserve their effectiveness), which means they generate limited revenue, which means pharmaceutical companies have little incentive to develop them. The report calls for new funding models, including push incentives (grants, tax credits) and pull incentives (guaranteed purchase commitments, market entry rewards) to revitalize the antimicrobial pipeline.

Emerging infectious diseases beyond AMR also remain a persistent concern. The WHO disease outbreak tracker continues to monitor novel pathogens with pandemic potential, and the report emphasizes that the conditions driving emergence—deforestation, wildlife trade, urbanization, and climate change—are intensifying rather than abating.

Investment Priorities for Global Health 2025–2030

The WHO Global Health Report 2025 concludes with a clear investment framework for closing the global health gap before the 2030 SDG deadline. The analysis frames health investment not as a cost but as an economic multiplier—every $1 invested in health in LMICs generates an estimated $2–4 in economic returns through increased productivity, reduced poverty, and stronger social systems.

Primary Health Care as the Foundation

WHO estimates that an additional $200–328 billion in annual spending is needed to achieve UHC by 2030. The majority of this investment should flow to primary health care—the front-line services that prevent disease, manage chronic conditions, and provide the first point of contact for most patients. Countries that have invested heavily in primary care (Portugal, Thailand, Costa Rica, Rwanda) consistently achieve better health outcomes per dollar spent than those relying on hospital-centric models.

Pandemic Preparedness Infrastructure

The cost of pandemic preparedness is a fraction of the cost of pandemic response. WHO and the World Bank estimate that $31.1 billion in new annual spending on surveillance, manufacturing capacity, and rapid response systems could prevent or significantly mitigate future pandemics. Given that COVID-19’s economic impact exceeded $12 trillion, the investment case is overwhelming.

Health Workforce Investment

Closing the 10-million-worker gap requires sustained investment in education, training institutions, compensation, and retention programs—particularly in sub-Saharan Africa and South Asia. The report recommends that countries allocate at least 50% of new health spending to workforce development, recognizing that no health system can function without adequate human resources.

Digital Health and Innovation

Strategic investment in digital health infrastructure—including broadband connectivity, electronic health records, AI diagnostic tools, and telemedicine platforms—can extend the reach of limited health workforces and improve service quality. WHO recommends that digital health investments be integrated into national health strategies rather than treated as standalone technology projects. The broader application of AI in healthcare will be a defining theme of global health innovation through the remainder of the decade.