Antimicrobial resistance (AMR) occurs when bacteria, fungi or viruses change in a way that makes the drugs used to treat them ineffective.
These drug-resistant infections are much harder – if not impossible – to treat and cure. They cause over a million deaths every year, and projections suggest this will increase significantly over the next few decades. By 2030, the health impacts of AMR could lead to a US $3.4 trillion annual shortfall in global GDP [PDF 3.8MB].
However, the effects are not experienced equally. Low- and middle-income countries have the highest burden of drug-resistant infections.
For example, in sub-Saharan Africa, nearly 1 in 1,000 deaths are already associated with bacterial antimicrobial resistance, compared to half as many in high-income countries.