Despite the global emergence of highly resistant strains of gonorrhoea, including untreatable variants, a new antibiotic for the disease has not been developed in over half a century. In January, a trial began in South Africa and other countries for a new gonorrhoea antibiotic. But what is gonorrhoea? How significant is the problem in South Africa and among those living with HIV? Do we have resistant strains too? Experts report a grim situation, but with hope on the horizon. Amy Green reports.