Objective:To construct a recombinant defective retroviral vector carrying hNT3 gene and a stable virus-producing packaging cell lines , and then to identify them.
构建并鉴定携带人NT - 3基因的逆转录病毒载体以及稳定的包装细胞系。
The H5N1 virus is not stable and keeps constantly changing.
H5N1型病毒不稳定并不断变化。
According to a study from researchers at Mount Sinai Medical School, the flu virus is more stable and able to stay airborne longer when the air is cold and dry.
按MountSinai医学院研究者一研究，当空气寒冷和干燥流感病毒更稳定并能在空气中停留更久。
Inoculation test and field observation showed that Zhongcun 1 has considerably high and stable horizontal resistance to 3 strains of the virus.
接种试验及田间观察结果表明，钟村1号对3个株系病毒抗性均表现出较高水平，发病轻微，具有较强而稳定的水平抗病性。
To evaluate its heredity stability, the recombinant virus genome was extracted and digested by Hindlll every 5 generations, and 40 generations later, its enzyme digestion sites almost keep stable.
同时在连续传代40代后每隔5代提取重组病毒全基因组进行酶切鉴定，发现其酶切位点保持不变。
Objective: To develop an immune preparation with more effective and stable effect of anti-virus basing on the research of anti-newcastle disease virus factors.
目的：在研究抗新城疫病毒因子的基础上，开发一种抗病毒作用更强，疗效更为稳定的免疫制剂。
Objective: To develop an immune preparation with more effective and stable effect of anti-virus basing on the research of anti-newcastle disease virus factors.
目的：在研究抗新城疫病毒因子的基础上，开发一种抗病毒作用更强，疗效更为稳定的免疫制剂。
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