Although this study is limited by the small sample size and by histology examination only at autopsy, the authors suggest that the olfactory system may be involved at an early stage in sporadic CJD.

• 这项研究的限制为样本数较小，且只进行尸体解剖组织检验。但作者认为，嗅觉系统可能牵涉到初期偶发性CJD。