What is the main argument in Lei’s Sovereignty and the Microscope ? According to Lei, why did people (Chinese and non-Chinese, perhaps for different reasons) not believe that this plague could infect? What changed their belief, at least of the elites and officials? What was the relationship between the state and biomedicine in this case, in comparison with the nature of relationship between the state and medicine in Crook’s piece? What was the significance of the Manchurian plague of 1910-1911? (This answer would link to his main argument.