Heal the world using technology

Global leaders at the recent annual gathering of the World Health Assembly in Geneva expressed worry and optimism in almost equal measure. Delegates at the Assembly - the decision-making body of the World Health Organization - likened the scope of the world's health crisis to that of the threat posed by climate change. They also agree, however, that digital technology and data will play a crucial role in accelerating efforts to achieve health for all.

In many respects, the world's health has improved markedly in recent decades: average global life expectancy has increased by over five years, while childhood mortality has decreased by over 50 per cent since 1990. Yet half the world's population still lacks full access to basic health services, and health-related expenses drive roughly 100 million people per year into poverty. The problem is particularly severe in low- and middle-income countries, where the financial burden of the four most frequent non-communicable diseases alone (cardiovascular disease, cancer, diabetes, and chronic respiratory diseases) is expected to surpass $7 trillion by 2025.

At the same time, the world is just beginning to recognise the potential of digitally enhanced data to improve health. With increased use of digital technology, we can help people stay healthy. We can make reactive health-care systems proactive and - thanks to artificial intelligence (AI) - even predictive.

In our view, digital health is the most efficient, cost-effective way for the world to meet the United Nations Sustainable Development Goals' health-related targets - particularly universal health coverage, whereby everyone can access the quality care they need without incurring financial hardship. This is also a high priority for the WHO, which earlier this year created a Department of Digital Health and published its first set of guidelines on the subject.

With several major global strategy-setting meetings ahead, including the UN High-Level Meeting on Universal Health Coverage in New York in September, the world must act now to realise the promise of digital health. We see three distinct opportunities for cross-sectoral partnerships: in prediction, prevention, and health-care delivery.

Understanding - and, where possible, predicting - the health profile of populations is integral to providing better care. Digitised data collection, including through the use of AI and machine learning, can help health-care systems to detect risk factors and respond quickly to prevent disease. Real-time data can inform planning and resource-allocation decisions, reduce costs, and improve the quality of care. Better processes for ensuring data security and privacy are also essential to implement predictive systems at scale.

To explore further the challenges and huge opportunities in this area, the Novartis Foundation and Microsoft are co-chairing a new Broadband Commission working group that will make recommendations regarding how AI can safely improve health and strengthen health-care systems. In a similar vein, health-advocacy organisation PATH is working with the Tanzanian government to test machine-learning applications that promise to predict demand for vaccines more accurately and optimise their delivery.

Digital health tools that inform and empower patients can also play a crucial role in preventing disease. Simple, existing, cost-effective technology, such as mobile phones and broadband, can make a huge difference in raising awareness.

Finally, digital technology can help to deliver health care to people in remote or underserved areas, thereby tackling one of the greatest obstacles to reducing disease. Using mobile phones, WhatsApp, and text messages can improve the quality and accessibility of care for millions of people. In that regard, telemedicine initiative in Ghana connects rural inhabitants with trained healthcare professionals, and digital dashboards that enable better, faster malaria care.

Digital data and technology must be fully integrated into national health systems, and should become as essential as hospital beds. Too many digital health pilot programmes over the past decade have been uncoordinated and focused on single issues.

We can solve the global health crisis and achieve universal coverage, but only by making digital tools central to all countries' health systems. No single organisation can achieve this on its own: we need the public, private, and social sectors to work together. In fact, the goal must be to make these new technologies so widespread that we no longer need to refer to 'digital' health, because that is what all health systems will be.

Ann Aerts is Head of the Novartis Foundation. Steve Davis is President and CEO of the nonprofit organisation PATH