Kumar参加了一个由多个医院协作的研究项目，旨在找出其答案。初步结果显示，病症的严重性与HLA(人白细胞抗原系统，一种免疫系统内的基因变异)有关。
Kumar is coordinating a multi-hospital study of severe H1N1 to find out, but says preliminary results suggest severity is linked to HLA, a genetic variation in immune systems.
由于这种抗原很少出现，因此它不可能是由于人类血液中遗传变异形成的抗原。
Since it occurred only rarely, it was unlikely to be an antigen caused by genetic variation in human blood.
方法：按who规定的原理和方法进行：对流感流行株、抗原和基因变异以及血清抗体和病毒多病原实行监测。
Methods: According to the principle and methods of the WHO stipulation, the influenza epidemic strains, antigen, gene variation, serum antibody and virus multi-pathogen were monitored.
有一些感染者先天有某种特定类型的人组织相容性抗原，其中，约96%的感染者的细胞内测出了变异的艾滋病病毒。
Some infected people have innate has a particular type of person histocompatibility antigen, one of about 96% of the cells infected with a variation of inner HIV.
这种模型包含了两种竞争，第一种导致了假性标志的出现，这种现象被称为原始抗原变异。
The model includes two forms of competition. The first form leads to a phenomenon known as deceptive imprinting, or original antigenic sin.
流感病毒抗原变异与流感的流行大小、预防、控制密切相关。
The antigenic variation of flu virus is closely related to the epidemic situations, the precaution, and the control of flu.
结论浙江省麻疹野毒株已出现明显的抗原性变异。
Conclusions Wild-type measles virus prevailing in Zhejiang Province has appeared significant antigenic variation.
目的了解浙江省麻疹野毒株的抗原性变异状况。
Objective To study the antigenic variation of wild-type measles virus prevailing in Zhejiang Province.
目的了解流感流行和流感病毒毒株表面抗原性变异情况。
Objective To understand the situations of influenza epidemic as well as the aberrance of the surface proteins antigenicity of influenza virus.
在无HLAA2表型的感染者中，其感染后5年病毒抗原表位肽段既无共有序列的变异，也无琥珀突变。
However, in the HLA A2 - individual, the epitope had neither variation nor amber mutation in 5 years after infection.
阐明2006年四川省流行的B型流感病毒血凝素抗原性及其基因变异情况。
To identify the antigenic characteristics and genetic variations of hemagglutinin genes from Influenza B virus, which circulated in Sichuan Province in 2006.
抗原的存在可能与细胞周期或细胞群体的变异性有关。
It is very possible that the existence of the antigen may be involved in the cell cycle and the variability of cell population.
单抗与病毒之间的反应差异性表明HN蛋白上的部分抗原表位存在着较明显的变异。
The different reactive profile of the MAbs with the NDV strains demonstrated the presence of antigenic variation on the HN protein.
HA1的氨基酸位点变异主要位于5个已知的抗原位点及其附近，同时其它位点也有改变。
The animo acid changes of HA1 mostly located at the antigenic sites or aside of them, but also may occur at the other sites simultaneously.
目的分析2006年中国季节性流感的流行状况，以及病毒的抗原性和基因变异情况。
Objective To analyze seasonal influenza epidemic situation in 2006, and to analyze the genetic and antigenic characteristics of viral hemagglutinin (HA) gene.
目的分析2006年中国季节性流感的流行状况，以及病毒的抗原性和基因变异情况。
Objective To analyze seasonal influenza epidemic situation in 2006, and to analyze the genetic and antigenic characteristics of viral hemagglutinin (HA) gene.
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