在8月，配对血清样本的后续检测发现H5N1中和抗体效价增加4倍，这是符合世卫组织实验室确诊标准的检测结果。
In August, follow-up testing of paired-serum samples found a fourfold rise in neutralization antibody titer for H5N1, a test result which meets the WHO criteria for laboratory confirmation.
采用小鼠中和试验测定血清效价。
其中，仅S和S1蛋白重组质粒能够诱导中和抗体的产生，以S蛋白的效价为高。
Of three forms of S recombinant proteins, only S or S1 protein induced neutralizing antibody responses, antibody titer was increased by S protein immunization.
同时对免疫的雏鸭采血，中和试验测定血清的效价。
The serum of the immunized ducklings were collected and the antibody titer were measured by neutralizing test.
以血清交叉中和方法进行鸡传染性支气管炎双价活疫苗效力检验，结果与攻毒方法效检结果一致。
Efficacy test of chicken infection bronchitis bivalent living vaccine was taken with the method of serum cross neutralization. The results showed that it was consistent with that of challenge method.
中和抗体效价稍有下降，但未发现中和抗体消失者。
Neutralizing antibody had a small drop. Did not disappear in patients.
其超微结构具有副粘病毒的基本特点，中和抗体效价和交叉中和抗体效价都高达10 2 4。结论成功分离犬副流感病毒CPIV-XN931。
The titer of neutralized antibody and cross neutralized antibody all fell to 1024. CONCLUSION The isolated is a strain of CPIV XN931.
其超微结构具有副粘病毒的基本特点，中和抗体效价和交叉中和抗体效价都高达10 2 4。结论成功分离犬副流感病毒CPIV-XN931。
The titer of neutralized antibody and cross neutralized antibody all fell to 1024. CONCLUSION The isolated is a strain of CPIV XN931.
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