Published online by Cambridge University Press: 01 December 2007
Foot and mouth disease (FMD) ceased to be endemic—continually present—in Britain in 1889. It is reasonable to suppose that all subsequent outbreaks have had the importation of virus as their starting point. So when on 3 August this year two cases were confirmed in cattle on a farm in Surrey the origin of the virus was an immediate question. Surrey is commuter belt country. Its farms are small. They are dotted between medium-sized towns and large villages and so are not the loci of the kinds of intensive agriculture thought to be particularly at risk from exotic and imported animal diseases. But a potential source was close by, at Pirbright, only about 6 kilometres from the farm.