### Chinese: 作者表示，2002年SARS暴发时，起初中国准备不足，尤其是病原体无法确定。
### English: The authors say that when the SARS outbreak occurred in 2002, China was ill-prepared, initially especially since the pathogen could not be identified.

### Improved English: The authors say that when the SARS outbreak occurred in 2002, China was initially ill-prepared, especially since the pathogen could not be identified.
