Oh, this is aweful dr. Is there a connection with food perhaps? Many processed foods and grain fodder contain oil based ingredients.

Interesting that one of the commenters tried to link Fukashima to it. Bit of a stretch, but who knows how that event is extending out in to the world.

England seems to have a lot of these types of livestock incidents. If it's the isolation, you would expect similar in places like NewZealand and the Falklands, which are also large sheep producers. Mad cow's etc, etc, seems to pop up in the UK more than anywhere else.