In the previous chapter I suggested that the spaces of disease are as conformational as they are informational. The ‘thing’ about disease is not only the infective particle, it is the relations between various matters that make a disease. I now want to explore this conformational approach with reference to security and nature, or more specifically to the issue of bio-security. The question that animates the chapter is, how can one secure the nonhuman world? The answer, as you may well have guessed from previous chapters, is not to attempt to define pure spaces, or erect impermeable barriers between the pure and the impure. Rather, it is to understand and work with the multiplicities of things, and allow for some ‘give’ in ...