A WHO report in February listed a worrying number of pathogens that threaten our health because there are fewer and fewer drugs that can treat the infections they cause. Indeed, since their 1960s heyday, the production of novel antibiotics has declined markedly and it’s been 30 years since a major new class of antibiotics for clinical use has been discovered. There are even cases of resistance to Vancomycin, used by doctors as an antibiotic of last resort.