Antibiotic Apocalypse
Panorama investigates the global advance of antibiotic-resistant superbugs and the threat they pose to modern medicine and millions of patients worldwide.
Reporter Fergus Walsh talks to Prof Anthony Coates, who explains how old antibiotics are being overhauled to make them effective again.
Panorama: Antibiotic Apocalypse is on Monday 18 May on BBC ONE at 20:30 BST or you can catch up on iPlayer.