Tuberculosis (TB) is the world's deadliest infectious disease, and the leading killer of people with HIV. TB is curable, but it can be difficult to diagnose and tough to treat, especially for increasingly prevalent drug-resistant TB. In 2023, 22,700 people started TB treatment in MSF programs. Understanding the costs and cost-effectiveness associated with TB treatment and innovations, ranging from TB diagnostics and medications to TB care models, can help to plan resource needs and allocate resources effectively. Analyzing financing mechanisms can support developing sustainable funding models for TB control.

This collection spotlights articles by MSF and collaborators to analyze and document the costs of care, particularly diagnostics and medications.

Globally, the number of older people is rapidly increasing, with those aged 60+ expected to more than double by 2050—yet in humanitarian crises, they remain one of the most neglected groups. Older adults often face higher risks due to chronic illnesses, mobility issues, and limited access to appropriate care, especially in low-resource or emergency settings. Despite these needs, humanitarian responses rarely prioritize them, and data on their health and mortality are often lacking.

This collection reflects MSF’s ongoing examination of its own data and practices to identify pathways toward more age-inclusive services in humanitarian crises. It includes analysis of data from MSF-supported mental health services, inpatient departments, and sexual violence services, and further offers several calls to action and reflections on why older people remain overlooked in humanitarian crises. However, MSF also acknowledges major challenges remain, including inadequate age-inclusive services, data gaps, and the need for more geriatric expertise.

Watch this space for more publications from a Lancet Healthy Longevity series on healthcare rights and needs of older people.