Resistance to antibiotics is a growing public health crisis, especially in countries with fragile health systems and in regions at war. The World Health Organization has estimated that antibiotic-resistant bacteria caused nearly 1.3 million deaths in 2019, a toll that will increase significantly in the coming years if effective action is not taken. To mark World Antimicrobial Awareness Week 2022 (18-24 November) we present a snapshot of MSF’s recent work on responding to this growing threat. Since many humanitarian settings lack laboratory capacity to diagnose these infections, MSF and partners have developed two new technologies with the potential to dramatically expand the availability of accurate diagnosis—allowing clinicians to then tailor antibiotic treatment accordingly. Other work from diverse contexts describes practices and challenges related to optimizing rational antibiotic use within health facilities and communities. Lastly, several studies characterize the patterns and prevalence of antibiotic resistance among MSF patients, from hospitalized neonates in Central African Republic to acute trauma patients in Haiti and Yemen.

The climate crisis is also a health and humanitarian crisis, disproportionately impacting people in the world’s most climate-sensitive regions—mainly low- and low-middle income countries with the least capacity to respond. MSF and other humanitarian organizations witness the consequences daily. More frequent, intense weather events and a warming planet contribute to food and water scarcity, more severe and widespread disease outbreaks, and more injuries and preventable deaths. They also drive massive population displacement, with over 32 million people fleeing their homes in 2022 alone due to floods, drought, storms and fire—nearly triple the number displaced by violence and conflict. As global leaders convene in Dubai for the UN climate conference (COP28, 30 Nov-12 Dec 2023) we present this cross-section of work by MSF and collaborators, drawing from first-hand experience at our medical projects. Emphasizing the urgency of adapting humanitarian operations to the climate crisis, the collection also explores loss and damage through a health lens, proposes policies and practices for creating climate-resilient health organizations, and advocates for embedding fair, just ethics perspectives into humanitarian action and research on climate.