Antimicrobial resistance: when medicines stop working
Bacteria are evolving faster than new antibiotics arrive. A Lancet analysis forecasts 39 million deaths directly caused by resistant infections between 2025 and 2050.
How this affects people
Every time an antibiotic is used, bacteria that survive it get a chance to spread. Overuse in people and animals, poor sanitation and weak infection control speed this up, while the pipeline of new antibiotics has thinned.
The result is infections — pneumonia, bloodstream and urinary infections, wound infections after surgery — that no longer respond to standard treatment. The burden is heaviest where access to diagnostics and second-line drugs is weakest; sub-Saharan Africa and South Asia carry the highest death rates.
AMR is a shared problem: resistant strains cross borders through travel, trade, food and water, so no country can solve it alone.
Look at what keeps the problem going
- 01Unnecessary or incomplete antibiotic use in people
- 02Routine antibiotic use in livestock and aquaculture
- 03Poor water, sanitation and hospital infection control
- 04Too few new antibiotics and rapid diagnostics reaching patients
What could happen next
The future leaves room for choices. Compare the outlooks, check what supports them and notice where the evidence becomes less certain
Resistance keeps outpacing new drugs
Resistant infections already contribute to millions of deaths each year. In the next year the trend continues unless stewardship and infection prevention improve in hospitals and farms.
The future is not a timetable. These summaries reflect published scenarios and trends, with deeper uncertainty at longer horizons. Choices made now matter.
Where could a useful response begin?
Begin with a question you can investigate. Compare the sources and follow related briefings to see how the problem connects to other lives and places. This prototype does not accept proposals yet.
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Sources
- More than 39 million deaths from antibiotic-resistant infections estimated between now and 2050IHME / The Lancet · 2024
- Global burden of bacterial antimicrobial resistance 1990–2021 with forecasts to 2050The Lancet (GRAM) · 2024
- Antibiotic resistance could cause 39 million deaths between now and 2050University of Oxford · 2024