One sheep dribbles, another limps, a third can barely stand: the bluetongue virus is causing havoc for Dutch farmer Erik van Norel, who thought he had seen the end of it. "Last year we simply saw that they were sometimes just dead within 12 hours or 24 hours. There was simply nothing we could do about it," he says. The disease this year is milder but it is still having an impact. IMAGES AND SOUNDBITES