Thanks, feldar; I really appreciate the way you and others experiencing this terrible disease have kept us informed.
As to avoiding lambing next year... I am hoping that the virus does its rounds early(ish) in the summer, infecting all the ewes when they are not in lamb (and when this year's lambs can tolerate mum's milk going off for a couple of days, coupled with having a temperature themselves.) All sheep will then be immune and there should be no impact on next year's lambing.
Or have I misunderstood it?