Black Death targeted the weak By Roger Highfield, Science Editor Last Updated: 10:01pm GMT 28/01/2008 The Black Death, which killed one person in every three in Europe, was not as indiscriminate as thought, according to studies of remains in mass grave in East Smithfield. Skeletons of plague victims in a mass grave at East Smithfield, London The toll was so high during its height in the 1300s that many have concluded that anyone and everyone who came into contact with the agent, thought to be a bacterium, was doomed. But research published today shows that people who were physically frail...