Researchers have been working on a new vaccine for rotavirus called BRV-PV.

研究人员一直在研究一种名为 BRV-PV 的轮状病毒新疫苗。

The researchers say the clinical trial shows that BRV-PV was nearly 67 percent effective.

研究人员表示，临床试验表明 BRV-PV 的有效性接近 67%。