It's just a little along from Hythe towards Dymchurch. Romney Marsh area. On the Defra website, you can see the whole map, with the exclusion zone around the farm in the middle. Someone I work with has a smallholding just a little further along from the exclusion zone - she's very worried.
If the worst is confirmed I wonder if the 'maize maze' attraction is linked - the other possible site is Chessington, so another 'day out' venue... Awful for the Furnvals, and such a long wait, not sure of that's good or bad??