Government scientists have shown that it is possible to infect cattle with a BSE-like disease through injecting scrapie-infected material from sheep. This may bring scientists closer to identifying the cause of the BSE epidemic in Britain. Scientists from the veterinary laboratories agency injected the scrapie-infected material into two cows eighteen months ago, and they have now developed symptoms regularly associated with BSE. The cows have been put down, and what is important now is for the scientists to determine whether the disease they contracted behaves similarly to BSE or scrapie, and whether there may have been consequences for human health if the cattle had entered the food chain.