TSE/scrapie in sheep: an outbreak spread by trade

An outbreak of TSE / scrapie is described in a flock of Hampshire Down shee p in Belgium. After the diagnosis was confirmed in an animal that had been sold, screening was performed on 16 other farms, that also had bought anima ls from the farm at issue. Half of these herds proved to be positive. Tn th e primary focus, two sheep were affected. Genotyping for the determination of the sensibility to TSE / scrapie was performed.