A woman has died from Nipah amid fears the brain-swelling virus has been branded the "next pandemic threat." The woman was in Bangladesh, where cases of the killer bug have been confirmed. Nipah is a feared virus that can kill as many as 75 per cent of people who catch it . Cases were first reported in India before crossing into Bangladesh which sparked UK health officials to issue alerts amid concerns the virus could spread beyond the Subcontinent. The patient, believed to be between 40 and 50,