I've just looked at the BBC News site to see that there has been an outbreak of Foot and Mouth in the UK. This one is pretty close. On the site there is a map, with a circle showing the exclusion zone. To the top left of that circle is a red blob showing a train station (on the line going north east to south west). We live two minutes walk from that blob. We're in the surveillance zone.
I wonder what will happen with the local Farmers' Market next week.