These animals cannot host infectious prions. While the quality of their meat remains to be assessed, they can provide a safe source of biological agents – such as therapeutic antibodies and growth factors – for use in human medicine.
事实上，不携带朊病毒的羊和牛已经被培育出来。这些动物不能作为传染性朊病毒宿主。它们的肉质仍有待评估，但可以为用于人类的药物提供安全的生物制剂源——如治疗性抗体和生长素。