攻毒试验 meaning in English
challenge experiment
challenge studies
Examples
- The 100 % immuno - protection against hcv strain f114 , v - jn and v - yc was observed in the experimental piglets that had been vaccinated with hclv strain vaccine by the program above
攻毒试验再一次证实仔猪按此程序2次免疫，于150日龄攻毒时试验组均未发病，保护率100 。