Woah there boys!! I trained at an agricultural college so claim intrest. Who ever was responsible, money cannot compensate for the years of work buliding a herd of cattle of flock of sheep or pigs, any cloven hoof animal is susceptable. We can argue about vectors till the cows come home. The disenfectants used are very powerful and have a susiduary defence while wet. The best thing most people can do is avoid control zones if possible, that includes events in such areas of any sort. Symptoms can be very subtle and if animals are outside it can be difficlut to spot without close examination. first sign is often lamness, but sheep in particular can go lame for a thousand reasons.