Although TB was close to being eradicated in the developed world, it is a major problem in developing countries. With drug-resistant strains on the increase, Clare Sansom outlines the latest in the fight against this killer disease From a historical viewpoint, what is the world’s most deadly infectious disease? Tuberculosis (TB) must be one of the strongest contenders. The disease that the seventeenth-century writer John Bunyan described as ‘the captain of all the men of death’ is still rightly feared today. Despite some recent progress, the latest figures released by the World Health Organisation (WHO) show that there were an...