Vaccination with Ecthybel ® (I hope it always exist, made by Merial Laboratory) is possible. The intradermal way with a dermojet is the best. Several vaccinal protocols are possible. In preventive, we can suggest making the vaccination 3-4 weeks before birth . The engendered immunity is short-lived and the transmission colostrale bad. The vaccination, in particular lambs, in period of fit of ecthyma is possible but has to be made as soon as possible. The vaccinal reminders will then have to be made every month and half or every two months in period at risk.