negative corona

例句：

1. 1. The study found that the negative corona virus was responsible for the outbreak.
   研究发现，负态冠状病毒是疫情爆发的原因。
2. 2. The researchers are working on developing a vaccine to combat this new negative corona virus.
   研究人员正在研究开发疫苗来对抗这种新的负态冠状病毒。
3. 3.The negative corona virus has spread rapidly across the globe, causing widespread panic and economic disruption.
   负态冠状病毒迅速在全球范围内传播，引发了广泛的恐慌和经济中断。