医生怀疑他感染了一种类似非典的病毒，因为出现了相似的呼吸系统症状。

The doctor suspected he had a ___sars-like virus due to similar respiratory symptoms.

这种类SARS病毒的传播方式引起了全球卫生专家的高度警惕。

The ___sars-like virus's transmission pattern raised high alert among global health experts.