Antibiotic Drug resistant infections will kill an extra 10 million people a year worldwide – more than currently die from cancer – by 2050 unless action is taken, a study says.
They are currently implicated in 700,000 deaths each year.
The analysis, presented by the economist Jim O’Neill, said the costs would spiral to $100tn (£63tn).
He was appointed by Prime Minister David Cameron in July to head a review of antimicrobial resistance.
Mr O’Neill told the BBC: “To put that in context, the annual GDP [gross domestic product] of the UK is about $3tn, so this would be the equivalent of around 35 years without the UK contribution to the global economy.”