virus variation

Calculation of the variation rate of influenza B virus was revised in this paper.

还修正了乙型流感病毒变异速率的计算方法。

However, these positive sites changed markedly between adjacent clusters. Integrate the information shows above, we could draw the conclusion that mainly due to enhancement of host immune barrier, the variation speed of H3 subtype influenza virus was accelerated in these years.

综合上述分析结果，我们认为H3亚型流感病毒在人间的变异呈现出逐渐加速的趋势，而这主要是受到了越来越强大的免疫屏障的筛选作用所致。

Genetic Variation of Glycoprotein G1 Encoding Region of Hantaan Virus Hubei Strain

汉坦病毒湖北株M片段G1编码区基因变异研究

Frequent virus variation is the major cause of influenza epidemics.

摘要流感病毒的不断变异是造成流感经常流行的主要原因.

Genetic variation of phosphoprotein gene of avirulent Newcastle disease virus of duck origin in China

我国几种野鸭和家鸭遗传多样性的SSR分析鸭源新城疫病毒P基因遗传变异分析

Research for H3 Antigenic Evolution and Variation Rule of Influenza a Virus

甲型流感病毒H3抗原进化及变异规律研究

This result may have something to do with the appearance of the new variation virus of CSFV and other factors.

究其原因，可能与CSFV出现了新的变异株等因素有关。

Objective: To analyze variation of gene sequence and identify genetic subtype of HIV-1 virus of 1 infected individual found in the central hospital affiliated to Shenyang Medical College.

目的：对2004年我院门诊检出的1例艾滋病感染者体内的HIV1病毒进行基因序列分析和亚型鉴定。

Gene variation was observed between the street virus strain and vaccine strain.

街毒与疫苗株之间基因存在差异。

Cloning and Genetic Variation Analysis of the HN Gene of Newcastle disease virus Isolates

新城疫病毒地方分离株HN基因的克隆及遗传变异分析