Most histories of livestock disease in Britain treat the development of control policy as a government responsibility, to which farmers made little constructive contribution. Similarly, farmers rarely appear in accounts of disease research. This paper uses the example of contagious abortion at the turn of the twentieth century to reveal that state-farming collaboration in research and policy did in fact occur, and that it operated in various ways, with often unexpected outcomes. The collaborative approach to contagious abortion is partly attributed (...) to its clinical and epidemiological features, which made it an unsuitable candidate for the existing, state-led policy of stamping out disease. It is claimed that such collaboration has been overlooked by historians on account of their focus upon diseases that were amenable to stamping out. This focus needs to change if history is to inform present-day disease governance in Britain, which is founded on the concept of ‘partnership’ between farmers and the state. (shrink)