Formerly, a quasi-viral or subviral agent thought to be responsible for the diseases scrapie in sheep and bovine spongiform encephalopathy (BSE) in cattle. These diseases are now generally regarded as being caused by abnormal prion proteins.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。